WO2022111463A1 - 拍摄方法、拍摄装置和电子设备 - Google Patents

拍摄方法、拍摄装置和电子设备 Download PDF

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Publication number
WO2022111463A1
WO2022111463A1 PCT/CN2021/132386 CN2021132386W WO2022111463A1 WO 2022111463 A1 WO2022111463 A1 WO 2022111463A1 CN 2021132386 W CN2021132386 W CN 2021132386W WO 2022111463 A1 WO2022111463 A1 WO 2022111463A1
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Prior art keywords
image
camera
video
shooting
interface
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Ceased
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PCT/CN2021/132386
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English (en)
French (fr)
Inventor
胡鹏翔
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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Application filed by Vivo Mobile Communication Co Ltd filed Critical Vivo Mobile Communication Co Ltd
Priority to ES21896964T priority Critical patent/ES3044309T3/es
Priority to JP2023532613A priority patent/JP7678877B2/ja
Priority to EP21896964.0A priority patent/EP4207742B1/en
Priority to KR1020237021621A priority patent/KR102751728B1/ko
Publication of WO2022111463A1 publication Critical patent/WO2022111463A1/zh
Priority to US18/302,267 priority patent/US12316956B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/80—Camera processing pipelines; Components thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/62—Control of parameters via user interfaces
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G03B15/16—Special procedures for taking photographs; Apparatus therefor for photographing the track of moving objects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/45—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from two or more image sensors being of different type or operating in different modes, e.g. with a CMOS sensor for moving images in combination with a charge-coupled device [CCD] for still images
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/63—Control of cameras or camera modules by using electronic viewfinders
    • H04N23/631—Graphical user interfaces [GUI] specially adapted for controlling image capture or setting capture parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/63—Control of cameras or camera modules by using electronic viewfinders
    • H04N23/631—Graphical user interfaces [GUI] specially adapted for controlling image capture or setting capture parameters
    • H04N23/632—Graphical user interfaces [GUI] specially adapted for controlling image capture or setting capture parameters for displaying or modifying preview images prior to image capturing, e.g. variety of image resolutions or capturing parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/65—Control of camera operation in relation to power supply
    • H04N23/651—Control of camera operation in relation to power supply for reducing power consumption by affecting camera operations, e.g. sleep mode, hibernation mode or power off of selective parts of the camera
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
    • H04N23/681—Motion detection
    • H04N23/6812—Motion detection based on additional sensors, e.g. acceleration sensors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/73—Circuitry for compensating brightness variation in the scene by influencing the exposure time
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/80—Camera processing pipelines; Components thereof
    • H04N23/84—Camera processing pipelines; Components thereof for processing colour signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/90—Arrangement of cameras or camera modules, e.g. multiple cameras in TV studios or sports stadiums
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/144—Movement detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/2621—Cameras specially adapted for the electronic generation of special effects during image pickup, e.g. digital cameras, camcorders, video cameras having integrated special effects capability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/2625—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects for obtaining an image which is composed of images from a temporal image sequence, e.g. for a stroboscopic effect
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/265—Mixing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/765—Interface circuits between an apparatus for recording and another apparatus
    • H04N5/77—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television camera

Definitions

  • the present application belongs to the field of imaging technologies, and in particular relates to a photographing method, a photographing device and an electronic device.
  • the streamer camera is used to shoot strip-shaped dynamic effects in specific dynamic scenes, such as starry sky, waterfalls, streams, road vehicles, and waving luminous objects.
  • specific dynamic scenes such as starry sky, waterfalls, streams, road vehicles, and waving luminous objects.
  • the inventor found that there are at least the following problems in the prior art: on the one hand, the current streamer camera consumes a lot of power during the shooting process, and the device generates serious heat; on the other hand, the current streamer camera If the movement trajectory of the light is not satisfactory, the movement trajectory of the light cannot be adjusted, and the only way to do it is to retake the shot.
  • the purpose of the embodiments of the present application is to provide a shooting method, which can reduce the power consumption of the streamer camera mode, and allow the user to easily customize the motion trajectory of the target moving object.
  • an embodiment of the present application provides a photographing method, the method comprising:
  • the first image is collected by the first camera
  • the second image is collected by the second camera, where the first image includes the picture of the current shooting scene, and the second camera is used to collect the motion trajectory of the target moving object.
  • the image includes the target moving object;
  • Image synthesis is performed on the first image and the second image to output a target image.
  • an embodiment of the present application provides a photographing device, and the device includes:
  • the first acquisition module is used to collect the first image through the first camera, and collect the second image through the second camera, where the first image includes the picture of the current shooting scene, and the second camera is used to collect the image of the target moving object.
  • a motion track the first image includes the target moving object;
  • the first synthesis module is configured to perform image synthesis on the first image and the second image to output a target image.
  • embodiments of the present application provide an electronic device, the electronic device includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being The processor implements the steps of the method according to the first aspect when executed.
  • an embodiment of the present application provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method according to the first aspect are implemented .
  • an embodiment of the present application provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction, and implement the first aspect the method described.
  • an embodiment of the present application provides an electronic device, including the electronic device being configured to execute the steps of the photographing method described in the first aspect.
  • an embodiment of the present application provides a computer program product, where the computer program product can be executed by a processor to implement the steps of the photographing method provided in the first aspect.
  • the user can customize the motion trajectory of the target moving object, and enhance the operability and interest of the streamer camera shooting mode.
  • the filming effect is better, and by reducing the number of frames collected for the current shooting scene, it helps to reduce hardware power consumption.
  • FIG. 1 is a flowchart of a shooting method provided by an embodiment of the present application.
  • Fig. 2 is one of the interface schematic diagrams of displaying the preview image collected by the first camera provided by the embodiment of the present application;
  • FIG. 3 is one of schematic diagrams of interfaces for displaying a preview image collected by a second camera provided by an embodiment of the present application
  • FIG. 4 is one of schematic diagrams of interfaces for displaying preview images collected by a first camera and a second camera provided by an embodiment of the present application;
  • FIG. 5 is one of schematic diagrams of interfaces for playing a first video and a second video provided by an embodiment of the present application
  • FIG. 6 is a detailed schematic flowchart of a shooting method provided by an embodiment of the present application.
  • FIG. 7 is one of schematic diagrams of interfaces for displaying a second image provided by an embodiment of the present application.
  • FIG. 8 is a second schematic diagram of an interface for displaying a second image provided by an embodiment of the present application.
  • FIG. 9 is a third schematic diagram of an interface for displaying a second image provided by an embodiment of the present application.
  • FIG. 10 is a fourth schematic diagram of an interface for displaying a second image provided by an embodiment of the present application.
  • 11 is the second schematic diagram of the interface for playing the first video and the second video provided by the embodiment of the present application.
  • FIG. 12 is a third schematic diagram of an interface for playing a first video and a second video provided by an embodiment of the present application;
  • FIG. 13 is a structural diagram of a photographing device provided by an embodiment of the present application.
  • FIG. 14 is one of the schematic structural diagrams of the electronic device provided by the embodiment of the present application.
  • FIG. 15 is the second schematic diagram of the hardware of the electronic device provided by the embodiment of the present application.
  • the shooting mode of the streamer camera is to use the RGB sensor to capture frames for algorithm background processing.
  • Interesting pictures generated within a fixed period of time need to be continuously processed in the current shooting scene. , which makes the power consumption and heating problems of the device serious, and the motion trajectory of the moving object is completely bound to the film, which cannot be effectively separated, and the motion trajectory of the moving object cannot be adjusted independently, resulting in poor operability.
  • An embodiment of the present application provides a photographing method, and the execution body of the photographing method may be a terminal with a photographing function, including but not limited to a mobile terminal, a camera, or a control device of the terminal.
  • the shooting method is used to obtain a streamer photo, and the streamer photo contains the motion trajectory of light.
  • the photographing method includes: step 110 and step 120 .
  • Step 110 Collect a first image through a first camera, and collect a second image through a second camera, where the first image includes a picture of the current shooting scene, the second camera is used to collect the motion track of the target moving object, and the first image includes the image of the current shooting scene.
  • the target moving object Collect a first image through a first camera, and collect a second image through a second camera, where the first image includes a picture of the current shooting scene, the second camera is used to collect the motion track of the target moving object, and the first image includes the image of the current shooting scene.
  • the target moving object is used to collect the motion track of the target moving object.
  • the first image is used to generate the background image of the streamer photo
  • the background image of the streamer photo is obtained by editing the first image.
  • the background image of the streamer photo includes other pictures in the streamer photo except the movement track of the target moving object.
  • the first image may include basically static objects such as the road, fences in the road, plants beside the road, and buildings, or the first image may also include: weak light intensity.
  • Moving objects, such as pedestrians, etc.; the second image may only include: the movement track of the headlights on the moving vehicle, and the second image may be represented as one or more light strips.
  • the first camera may be an RGB sensor.
  • the second camera is used to collect the motion trajectory of the target moving object.
  • the second camera may be a DVS (Neuromorphic Vision Sensor).
  • DVS uses an event-based approach to capture dynamic changes in the scene. Unlike traditional cameras, DVS has no concept of "frames". When changes occur in the real scene, DVS produces some pixel-level outputs, which are events.
  • DVS requires very little data storage and computing resources, and it has very low latency, which can reach the microsecond level. And it can only record moving objects, and has no ability to perceive static background images.
  • the brightness of the moving target is low.
  • the RGB sensor cannot effectively capture its motion trajectory, and DVS can accurately capture the motion trajectory.
  • DVS captures the trajectory of moving objects, not only does not have a fixed time limit, but also consumes less power.
  • the second image may be the movement track of the target moving object in the streamer photo, or the movement track of the target moving object in the streamer photo may be generated based on the second image.
  • the first camera and the second camera are used to capture objects in the same shooting scene.
  • the waterfall water flow is the target moving object.
  • the first image includes the waterfall water flow and other backgrounds within the scope of the lens, such as static stones, trees, etc.;
  • the image only includes the movement of the waterfall's water.
  • the shooting method may further include:
  • the first camera and the second camera are activated.
  • the input of the user to activate the camera may be expressed in at least one of the following manners: touch input, voice input, and physical key input, etc., which will not be described herein again.
  • the above step 110 may be triggered automatically.
  • the terminal is provided with a photosensitive sensor, and when the photosensitive sensor detects that the light intensity is greater than the target intensity value, the first camera and the The second camera is automatically turned on to capture the above-mentioned first graphics and second images.
  • step 110 may also be triggered manually.
  • step 110 it may further include:
  • the input of starting shooting is used to trigger the first camera and the second camera to capture images.
  • the input to start shooting can be expressed in at least one of the following ways:
  • the input for starting shooting can be expressed as touch input, including but not limited to click input, sliding input, and pressing input.
  • receiving the input of the user to start shooting may be expressed as receiving the user's touch operation on the display area of the display screen of the terminal.
  • the active area of the input can be limited to a specific area, such as the lower middle area of the display area of the terminal display; or when the current interface displays the shooting preview interface, the current interface displays the target control, touch the target control to realize the input to start shooting.
  • the input to start shooting can be expressed as a physical key input.
  • the body of the terminal is provided with a physical button corresponding to shooting, and receiving the input of the user to start shooting may be expressed as receiving the input of the user pressing the corresponding physical button.
  • the input to start shooting can be expressed as a voice input.
  • the terminal may trigger the first camera and the second camera to capture images when receiving a voice such as "streamer shooting".
  • the input for starting shooting can also be expressed in other forms, including but not limited to character input, etc., which can be determined according to actual needs, which is not limited in this embodiment of the present application.
  • the terminal may control the first camera to collect the first image and control the second camera to collect the second image in response to the input of starting shooting.
  • the first camera and the second camera can start the acquisition synchronously, or the second camera starts to collect the second image after the first camera finishes collecting the first image, or the first camera collects the second image after the second camera finishes collecting the second image. an image.
  • the photographing method may further include:
  • the second camera In response to the input to stop shooting, the second camera is controlled to stop image capture, and a second image is generated based on images captured by the second camera between the input to start shooting and the input to stop shooting.
  • the input to stop shooting is used to trigger the second camera to end image acquisition.
  • the input to stop shooting can be expressed in at least one of the following ways:
  • the input to stop shooting can be expressed as a touch input, including but not limited to click input, sliding input, and pressing input.
  • receiving the user's input of stopping shooting may be expressed as receiving the user's touch input on the display area of the terminal display screen.
  • the active area of the input can be limited to a specific area, such as the lower middle area of the display area of the terminal display; or when the current interface displays the shooting preview interface, the current interface displays the target Controls, touch the target control to realize the input to stop shooting.
  • the input to stop shooting can be expressed as a physical key input.
  • the body of the terminal is provided with a physical button corresponding to shooting, and receiving an input of the user to stop shooting can be expressed as receiving an input of the user pressing the corresponding physical button.
  • the input to stop shooting can be expressed as a voice input.
  • the terminal may trigger the second camera to end image capture when receiving a voice such as "streamer shooting is complete”.
  • the input to stop shooting can also be expressed in other forms, including but not limited to character input, etc., which can be determined according to actual needs, which is not limited in this embodiment of the present application.
  • the second camera may also be controlled to end image acquisition through an automatic identification technology.
  • the processor when the processor recognizes that the target moving object stops moving (remains still within the target time) or disappears (cannot capture light), it controls the second camera to stop image capture.
  • Step 120 Perform image synthesis on the first image and the second image, and output the target image.
  • the terminal may synthesize the first image and the second image based on the collected first image and the second image, and output the synthesized target image, which is the streamer photo.
  • step 120 may be implemented in the following manner: replace the pixels of the target area in the first image with all the pixels on the motion track in the second image, and the target area is the same as the motion in the first image.
  • This method essentially replaces the pixels at the corresponding positions in the first image with the pixels corresponding to the motion trajectory in the second image.
  • any pixel of the motion track in the second image its coordinate position in the second image is: (a, b).
  • the first image and the second image are combined as follows:
  • the first image is marked as A, and the second image is marked as B;
  • the background image of the streamer photo and the motion trajectory of the target moving object are collected independently, so that it is possible to edit or adjust the motion trajectory of the target moving object.
  • the shooting method provided by the embodiment of the present application can be applied to a streamer shooting scene.
  • the user can define the motion trajectory of the target moving object and enhance the shooting of the streamer camera.
  • the operability and fun of the mode, the final film effect is better, and by reducing the number of frames collected for the current shooting scene, it helps to reduce hardware power consumption.
  • the shooting method may further include:
  • Step 120 performing image synthesis on the first image and the second image, including: performing image synthesis on the first image and the second image after adjusting the track parameters.
  • the first input can be expressed in at least one of the following ways:
  • the first input can be expressed as touch input, including but not limited to click input, sliding input, and pressing input.
  • receiving the user's first input may be expressed as receiving a user's touch operation on the display area of the terminal display screen.
  • the display area of the terminal display screen can display a target control, the target control includes a variety of image editing menus, including but not limited to zoom, sharpness adjustment, palette, brightness adjustment, etc., touch the target control to realize the first input .
  • the target control includes a variety of image editing menus, including but not limited to zoom, sharpness adjustment, palette, brightness adjustment, etc., touch the target control to realize the first input .
  • the first input can be represented as a voice input.
  • the terminal may trigger the movement track of the target moving object to be enlarged by 20% when receiving a voice such as "enlargement by 20%".
  • the first input may also be expressed in other forms, including but not limited to character input, etc., which may be determined according to actual needs, which is not limited in this embodiment of the present application.
  • the trajectory parameter includes at least one parameter representing the trajectory attribute of the motion trajectory, and the trajectory parameter includes but is not limited to at least one of the following: color, size , position, angle, breakpoints, and brightness.
  • adjusting the trajectory parameters of the motion trajectory in the second image includes but is not limited to any of the following:
  • the original color of the motion track is generally white.
  • the motion track can be adjusted to blue. Or green, to show the reflection of the waterfall on the blue sky or trees, and enhance the color effect of the target moving object;
  • the shooting method of the embodiment of the present application can independently edit or adjust the motion trajectory of the light, the shooting experience is more flexible and interesting, and the filming effect is better.
  • the shooting method may further include:
  • the shooting preview interface is displayed.
  • the shooting preview interface may be displayed in response to the input.
  • the display area of the display screen of the terminal displays a shooting preview interface, so as to facilitate the user to assist in framing.
  • the shooting preview interface can be expressed in at least one of the following ways:
  • the shooting preview interface is used to display the preview image Picture A collected by the first camera.
  • the shooting preview interface can only display the preview image collected by the first camera, which can provide a relatively large framing reference image for the background image of the streamer photo, which is convenient to realize the overall composition.
  • the shooting preview interface is used to display the preview image Picture B collected by the second camera.
  • the shooting preview interface can only display the preview image collected by the second camera, which can provide a relatively large framing reference map for the motion trajectory in the streamer photo, which is convenient for the user to adjust the target moving object in the photo before the official shooting. position and scale.
  • the shooting preview interface includes a first shooting preview sub-interface and a second shooting preview sub-interface.
  • the first shooting preview sub-interface is used to display the preview image Picture A collected by the first camera
  • the second shooting preview sub-interface is used to display the preview image Picture B collected by the second camera.
  • the shooting preview interface is displayed on a split screen, and the two sub-interfaces respectively display the preview images collected by the first camera or the second camera, which not only facilitates the user to adjust the position and proportion of the target moving object in the photo before the official shooting , and it is convenient for users to adjust the composition and layout of the entire photo before the actual shooting.
  • the first camera only captures the first image.
  • the photographing method may further include: when the motion trajectory starts to be generated, controlling the first camera to stop acquiring images.
  • both the first camera and the second camera when receiving the input of the user to start shooting, both the first camera and the second camera start to capture images, and when the motion trajectory starts to be generated, the first camera is controlled to stop capturing images, and the second camera is controlled to stop capturing images.
  • the camera continues to collect the motion trajectory of the target moving object, so that the first camera can capture at least one frame during the entire shooting process, which minimizes power consumption and does not affect the streamer photo.
  • Step 601 Turn on the camera, at this time, the first camera (sensor A) and the second camera (sensor B) open the preview at the same time;
  • the first camera (sensor A) normally displays the preview image of the current picture
  • the second camera (sensor B) does not have any picture because there is no moving object in the current picture.
  • Step 602 Before starting to shoot, it is possible to set whether the user needs to edit
  • a target image ie, a streamer photo
  • the attributes of each trajectory of the motion trajectory are the same as those collected by the second camera
  • the user selects the need to edit. After the shooting is completed, the first image (negative film) and the second image (photograph of the motion track) will be output. The user adjusts the track parameters of the motion track in the second image and clicks to combine them with the first image. The images are composited together to present the final target image (ie, the streamer photo);
  • Step 603 The user clicks to shoot, at this time, the first camera (sensor A) is exposed normally, and the first image (negative film) is captured.
  • Step 604 when the second camera (sensor B) detects that the motion track begins to be generated, the first camera (sensor A) is controlled to stop collecting images, and the second camera (sensor B) has been recording the motion track of the target moving object;
  • Step 605 when the motion track collection is completed, click End;
  • Step 606 If the user chooses not to edit in step 602, the first image and the second image are directly synthesized, and the target image (ie, the streamer photo) is output.
  • the target image ie, the streamer photo
  • step 607 If the user chooses to edit in step 602, proceed to step 607;
  • Step 607 Adjusting the trajectory parameters of the motion trajectory
  • the shooting method of the embodiment of the present application can be applied to a scene where a person holds a fluorescent stick and gestures a specific text or image in the air.
  • the motion trajectory of the target moving object can be easily customized and edited, so that the final formed image can be easily customized.
  • the target image works better.
  • the person shooting is holding a glow stick, expecting to make a gesture in the air
  • the target moving object collected by the second camera is a fluorescent stick
  • the second image collected is shown in Figure 7.
  • the second image has the following problems: (1) The proportion of the motion trajectory in the second image is too small; (2) The position of the motion trajectory in the second image is not ideal; (3) For "i", the actual collected value is "1".
  • the second image can be edited independently of the first image in the following manner.
  • the motion track in the enlarged second image is offset to the upper left area of the second image.
  • the position of the motion track can be adjusted, as shown in Figure 9 shown is the second image after the movement trajectory is moved, and the movement trajectory is moved to the middle area at this time;
  • Step 608 Synthesize the second image after adjusting the trajectory parameters with the first image to generate a target image (ie, a streamer photo), and end.
  • a target image ie, a streamer photo
  • step 602 may also be located after step 605 .
  • the first camera captures the first image and the first video
  • the second camera captures the second image and the second video
  • the photographing method may further include:
  • Collect a first video and a second video the first video includes a picture of the current shooting scene, and the second video is used to record the process of the target moving object forming a motion track;
  • the first video and the second video are played synchronously in response to the second input.
  • the first video may be captured by the first camera, and the second video may be captured by the second camera; or the first video may be captured by the third camera, and the second video may be captured by the fourth camera. Camera capture.
  • both the first camera and the second camera start to capture images, and after the first camera captures the first image, the first camera continues to capture the first image.
  • a video until receiving the input of the user to stop shooting; in response to the input of stopping shooting, the first camera is controlled to stop capturing video, and the second camera is controlled to stop capturing video; finally, the first image, the second image, the first video and the first video can be obtained.
  • Two videos, the first image, the second image, the first video and the second video may all be stored in the gallery, and the first video and the second video are automatically associated.
  • the shooting method can also output the first video and the second video used to represent the target image generation process, and by playing the first video and the second video synchronously, the target image generation process can be realized.
  • the intuitive display is highly interesting and has extremely high commercial prospects.
  • Step 701 Turn on the camera, at this time, the first camera (sensor A) and the second camera (sensor B) open the preview at the same time;
  • the first camera (sensor A) normally displays the preview of the current screen, and the second camera (sensor B) does not have any screen because there is no moving object in the current screen.
  • Step 702 Before starting to shoot, it is possible to set whether the user needs to edit
  • a target image ie, a streamer photo
  • the attributes of each trajectory of the motion trajectory are the same as those collected by the second camera
  • the user selects the need to edit. After the shooting is completed, the first image (negative film) and the second image (photograph of the motion track) will be output. The user adjusts the track parameters of the motion track in the second image and clicks to combine them with the first image. The images are composited together to present the final target image (ie, the streamer photo);
  • Step 703 The user clicks to shoot, at this time, the first camera (sensor A) is exposed normally, captures the first image (negative film), and starts recording, and finally generates the first video (video A);
  • Step 704 the second camera (sensor B) records the motion trajectory of the target moving object all the time, and records the picture generated by the motion trajectory to generate a second video (video B);
  • Step 705 After the motion track collection is completed, click End;
  • Step 706 If the user chooses not to edit in Step 702, the first image and the second image are directly synthesized, and the target image (ie, the streamer photo), and the associated first video and second video are output.
  • the target image ie, the streamer photo
  • step 702 If the user chooses to edit in step 702, proceed to step 707;
  • Step 707 Adjust the trajectory parameters of the motion trajectory, and reference may be made to the description of the previous embodiment for the adjustment method.
  • Step 708 Synthesize the second image after adjusting the trajectory parameters with the first image to generate the target image (ie, the streamer photo), and the associated first video and second video, and end.
  • the target image ie, the streamer photo
  • step 702 may also be located after step 705 .
  • the shooting method may further include the step of: in the case of receiving the second input from the user, in response to the second input, playing the first video and the second video synchronously.
  • the second input is used to synchronously play the first video and the second video on the playback interface
  • the playback interface includes a first playback sub-interface and a second playback sub-interface
  • the first playback sub-interface It is used to play the first video (Video A)
  • the second playback sub-interface is used to play the second video (Video B).
  • the two videos are displayed on a split screen. By comparing the two videos, you can see the entire process of generating the target image. .
  • the second input can be expressed in at least one of the following ways:
  • the second input can be expressed as touch input, including but not limited to click input, sliding input, and pressing input.
  • receiving the user's second input may be represented as receiving a user's touch operation on the display area of the terminal display screen.
  • click the first video, or click the second video, or the first video and the second video are displayed in the same control, and clicking the control can realize the listening of the first video and the second video without split screen play.
  • the second input can be represented as a voice input.
  • the terminal may play the first video and the second video synchronously in a split screen when receiving a voice such as "play a video of a streaming photo”.
  • the second input may also be expressed in other forms, including but not limited to character input, etc., which may be determined according to actual needs, which is not limited in this embodiment of the present application.
  • the above-mentioned shooting method has strong operability and interest, and can obtain better results under the condition of poor light source; and obtains a real video of the movement trajectory of the moving target and the dynamic picture generated by the movement trajectory.
  • the video frame of the second video includes the continuous trajectory of the target moving object in the time period from the start of acquisition to the moment corresponding to the video frame.
  • the i-th video frame of the second video includes the motion trajectory of the target moving object in the i-th time period, and the i-th time period is the time period between the first moment and the i-th moment, and the first moment is the moment of collecting the first video frame, and the i-th moment is the moment of collecting the i-th video frame;
  • i is a positive integer
  • the ith video frame is any video frame in the second video.
  • the starting point of the gesture is The intersection point in the upper middle, at the 10th moment, the light stick 1101 moves to the lower middle intersection, then the 10th video frame of the second video is shown in Figure 11, and the 10th video frame is used to represent the time from the first moment to the first In the time period between 10 times, the movement track 1102 of the glow stick 1101 .
  • the first video and the second video are played synchronously, the first video is used to show the pictures of all objects in the shooting scene, and the second video is used to show the continuous movement of the target moving object from scratch to completion.
  • the generation process can realize the intuitive display of the generation process of the target image, which helps to improve the fun of shooting.
  • the video frame of the second video includes the display position information of the target moving object at the moment corresponding to the current frame.
  • the above-mentioned display position information indicates the position of the moving object in the current frame at the time corresponding to the current frame, and in the current frame, the display position information is displayed as a light spot.
  • the ith video frame of the second video is the image of the target moving object collected at the ith moment, and the ith moment is the moment of collecting the ith video frame;
  • i is a positive integer
  • the ith video frame is any video frame in the second video.
  • the starting point of the gesture is The intersection point in the upper middle, at the 10th moment, the light stick 1101 moves to the lower middle intersection, as shown in Figure 12, the 10th video frame of the second video is displayed as a light spot, and the 10th video frame is the 10th moment
  • the collected image of the glow stick 1101, the image only includes the display position information of the glow stick 1101 at the tenth moment, and the display position information can be expressed by the position of the light spot 1201 used to represent the glow stick in the tenth video frame .
  • the first video and the second video are played synchronously, the first video is used to show the pictures of all objects in the shooting scene, the second video is used to show the position change process of the target moving object, and the target The picture of the moving object is close to the real scene, which can realize the contrast display of the background and the foreground in the process of generating the target image, which helps to improve the fun of shooting.
  • the executing subject may be a photographing device, or, or a control module in the photographing device for executing the loading of the photographing method.
  • the embodiment of the present application also provides a photographing device.
  • the photographing apparatus includes: a first acquisition module 1310 and a first synthesis module 1320 .
  • the first collection module 1310 is used to collect a first image through a first camera, and collect a second image through a second camera, where the first image includes the picture of the current shooting scene, and the second camera is used to collect the motion trajectory of the target moving object, the first image includes a target moving object;
  • the first synthesis module 1320 is configured to perform image synthesis on the first image and the second image, and output the target image.
  • the photographing device may further include:
  • a first receiving module configured to receive a user's first input on the second image
  • the first adjustment module is used to adjust the trajectory parameters of the motion trajectory in the second image in response to the first input, and output the second image after adjusting the trajectory parameters;
  • the first synthesis module 1320 is further configured to perform image synthesis between the first image and the second image after adjusting the trajectory parameters;
  • the trajectory parameter includes at least one parameter representing the trajectory attribute of the motion trajectory.
  • the first image and the second image are the same size
  • the first synthesis module 1320 is further configured to replace the pixels of the target area in the first image with all the pixels on the motion trajectory in the second image, where the target area is an area in the first image corresponding to the area where the motion trajectory is located.
  • the photographing device may further include:
  • a first display module used for displaying a shooting preview interface
  • the shooting preview interface is used to display the preview image collected by the first camera
  • the shooting preview interface is used to display the preview image collected by the second camera
  • the shooting preview interface includes a first shooting preview sub-interface and a second shooting preview sub-interface
  • the first shooting preview sub-interface is used to display the preview image collected by the first camera
  • the second shooting preview sub-interface is used to display the second camera. preview image.
  • the photographing device may further include:
  • the first control module is configured to control the first camera to stop capturing images when the motion trajectory starts to be generated.
  • the photographing device may further include:
  • the second collection module is used to collect the first video and the second video, the first video includes the picture of the current shooting scene, and the second video is used to record the movement process of the target moving object;
  • the first playing module is configured to play the first video and the second video synchronously in response to the second input in the case of receiving the second input from the user.
  • the i-th video frame of the second video includes a motion trajectory of the target moving object in the i-th time period, and the i-th time period is a time period between the first moment and the i-th moment, and the first moment is the moment of collecting the first video frame, and the i-th moment is the moment of collecting the i-th video frame;
  • the ith video frame of the second video is the image of the target moving object collected at the ith moment, and the ith moment is the moment of collecting the ith video frame;
  • i is a positive integer
  • the ith video frame is any video frame in the second video.
  • the shooting device provided by the embodiment of the present application, by independently acquiring the background image of the streamer photo and the motion trajectory of the target moving object, it is possible to realize the user-defined motion trajectory of the target moving object, thereby enhancing the operability and interest of the streamer camera shooting mode , the final filming effect is better, and by reducing the number of frames collected for the current shooting scene, it helps to reduce hardware power consumption.
  • the photographing device in this embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in a terminal.
  • the apparatus may be a mobile electronic device or a non-mobile electronic device.
  • the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palmtop computer, an in-vehicle electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (personal digital assistant).
  • UMPC ultra-mobile personal computer
  • netbook or a personal digital assistant (personal digital assistant).
  • assistant, PDA personal digital assistant
  • the non-mobile electronic device may be a personal computer (personal computer, PC), a television (television, TV), a teller machine or a self-service machine, etc., which are not specifically limited in the embodiments of the present application.
  • the photographing device in the embodiment of the present application may be a device having an operating system.
  • the operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.
  • the photographing apparatus provided in this embodiment of the present application can implement each process implemented by the photographing apparatus in the method embodiment of FIG. 1 or FIG. 6 , and to avoid repetition, details are not described here.
  • an embodiment of the present application further provides an electronic device 140 , including a processor 142 , a memory 141 , a program or an instruction stored in the memory 141 and executable on the processor 142 , the program or instruction When executed by the processor 142, each process of the above-mentioned embodiments of the shooting method is implemented, and the same technical effect can be achieved. To avoid repetition, details are not described here.
  • the electronic devices in the embodiments of the present application include the aforementioned mobile electronic devices and non-mobile electronic devices.
  • FIG. 15 is a schematic diagram of a hardware structure of an electronic device implementing an embodiment of the present application.
  • the electronic device 1500 includes but is not limited to: a radio frequency unit 1501, a network module 1502, an audio output unit 1503, an input unit 1504, a sensor 1505, a display unit 1506, a user input unit 1507, an interface unit 1508, a memory 1509, a processor 1510 and other components .
  • the electronic device 1500 may also include a power supply (such as a battery) for supplying power to various components, and the power supply may be logically connected to the processor 1510 through a power management system, so as to manage charging, discharging, and power consumption through the power management system. consumption management and other functions.
  • a power supply such as a battery
  • the structure of the electronic device shown in FIG. 15 does not constitute a limitation to the electronic device.
  • the electronic device may include more or less components than the one shown, or combine some components, or arrange different components, which will not be repeated here. .
  • the input unit 1504 is used to collect a first image through a first camera, and collect a second image through a second camera, where the first image includes the picture of the current shooting scene, and the second camera is used to collect the motion trajectory of the target moving object, the first image includes a target moving object;
  • a processor 1510 configured to perform image synthesis on the first image and the second image, and output the target image
  • the electronic device by independently acquiring the background image of the streamer photo and the motion trajectory of the target moving object, it is possible to realize the user-defined motion trajectory of the target moving object, thereby enhancing the operability and interest of the streamer camera shooting mode , the final filming effect is better, and by reducing the number of frames collected for the current shooting scene, it helps to reduce hardware power consumption.
  • the user input unit 1507 is configured to receive the first input of the second image by the user
  • the processor 1510 is further configured to, in response to the first input, adjust the trajectory parameters of the motion trajectory in the second image, and output the second image after adjusting the trajectory parameters;
  • the processor 1510 is further configured to perform image synthesis on the first image and the second image after adjusting the trajectory parameters;
  • the trajectory parameter includes at least one parameter representing the trajectory attribute of the motion trajectory.
  • the first image and the second image have the same size
  • the processor 1510 is further configured to replace the pixels of the target area in the first image with all the pixels on the motion track in the second image
  • the target area is an area in the first image corresponding to the area where the motion track is located.
  • the display unit 1506 is configured to display a shooting preview interface
  • the shooting preview interface is used to display the preview image collected by the first camera
  • the shooting preview interface is used to display the preview image collected by the second camera
  • the shooting preview interface includes a first shooting preview sub-interface and a second shooting preview sub-interface
  • the first shooting preview sub-interface is used to display the preview image collected by the first camera
  • the second shooting preview sub-interface is used to display the preview image collected by the first camera.
  • the interface is used to display the preview image collected by the second camera.
  • the processor 1510 is further configured to control the first camera to stop capturing images when the motion trajectory starts to be generated.
  • the input unit 1504 is further configured to collect a first video and a second video, where the first video includes a picture of a current shooting scene, and the second video is used to record the target moving object to form the The process of motion trajectory;
  • the display unit 1506 is further configured to play the first video and the second video synchronously in response to the second input when the second input from the user is received.
  • the input unit 1504 may include a graphics processor (Graphics Processing Unit, GPU) 15041 and a microphone 15042. Such as camera) to obtain still pictures or video image data for processing.
  • the display unit 1506 may include a display panel 15061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 1507 includes a touch panel 15071 and other input devices 15072 .
  • the touch panel 15071 is also called a touch screen.
  • the touch panel 15071 may include two parts, a touch detection device and a touch controller.
  • Other input devices 15072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be repeated here.
  • Memory 1509 may be used to store software programs as well as various data including, but not limited to, application programs and operating systems.
  • the processor 1510 may integrate an application processor and a modem processor, wherein the application processor mainly handles the operating system, user interface, and application programs, and the like, and the modem processor mainly handles wireless communication. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 1510.
  • the embodiments of the present application further provide a readable storage medium, where a program or an instruction is stored on the readable storage medium.
  • a program or an instruction is stored on the readable storage medium.
  • the processor is the processor in the electronic device described in the foregoing embodiments.
  • the readable storage medium include non-transitory computer-readable storage media, such as computer read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc. .
  • the embodiments of the present application further provide an electronic device, including the electronic device configured to perform each process of the above-mentioned shooting method embodiments, and can achieve the same technical effect, which is not repeated here to avoid repetition.
  • Embodiments of the present application also provide a computer program product, which can be executed by a processor to implement the various processes in the above-mentioned embodiments of the shooting method, and can achieve the same technical effect. Repeat.
  • An embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement each of the foregoing shooting method embodiments process, and can achieve the same technical effect, in order to avoid repetition, it will not be repeated here.
  • the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip, or the like.

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Abstract

本申请公开了一种拍摄方法、拍摄装置和电子设备，属于成像技术领域。该拍摄方法包括：通过第一摄像头采集第一图像，并通过第二摄像头采集第二图像，所述第一图像包括当前拍摄场景的画面，所述第二摄像头用于采集目标运动对象的运动轨迹，所述第一图像包括所述目标运动对象；将所述第一图像与所述第二图像进行图像合成，输出目标图像。

Description

拍摄方法、拍摄装置和电子设备
相关申请的交叉引用
本申请要求享有于2020年11月30日提交的名称为《拍摄方法、拍摄装置和电子设备》中国专利申请202011379813.8的优先权，该申请的全部内容通过引用并入本文中。
技术领域
本申请属于成像技术领域，具体涉及一种拍摄方法、拍摄装置和电子设备。
背景技术
流光相机作为一种拍摄模式，用于在特定的动态场景下，比如星空、瀑布、溪流、道路车辆及挥舞发光物体等动态场景下，拍摄出带状的动态效果。在实现本申请过程中，发明人发现现有技术中至少存在如下问题：一方面，目前的流光相机在拍摄过程中，功耗大，设备的发热严重；另一方面，目前的流光相机在对光线的运动轨迹不满意的情况下，无法调节光线的运动轨迹，只能重拍。
发明内容
本申请实施例的目的是提供一种拍摄方法，能够降低流光相机模式功耗，且使得用户可以方便地自定义目标运动对象的运动轨迹。
为了解决上述技术问题，本申请是这样实现的：
第一方面，本申请实施例提供了一种拍摄方法，该方法包括：
通过第一摄像头采集第一图像，并通过第二摄像头采集第二图像，所述第一图像包括当前拍摄场景的画面，所述第二摄像头用于采集目标运动对象的运动轨迹，所述第一图像包括所述目标运动对象；
将所述第一图像与所述第二图像进行图像合成，输出目标图像。
第二方面，本申请实施例提供了一种拍摄装置，该装置包括：
第一采集模块，用于通过第一摄像头采集第一图像，并通过第二摄像头采集第二图像，所述第一图像包括当前拍摄场景的画面，所述第二摄像头用于采集目标运动对象的运动轨迹，所述第一图像包括所述目标运动对象；
第一合成模块，用于将所述第一图像与所述第二图像进行图像合成，输出目标图像。
第三方面，本申请实施例提供了一种电子设备，该电子设备包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如第一方面所述的方法的步骤。
第四方面，本申请实施例提供了一种可读存储介质，所述可读存储介质上存储程序或指令，所述程序或指令被处理器执行时实现如第一方面所述的方法的步骤。
第五方面，本申请实施例提供了一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现如第一方面所述的方法。
第六方面，本申请实施例提供了一种电子设备，包括所述电子设备被配置成用于执行如第一方面所述的拍摄方法的步骤。
第七方面，本申请实施例提供了一种计算机程序产品，所述计算机程序产品可被处理器执行以实现如第一方面提供的拍摄方法的步骤。
在本申请实施例中，通过独立获取流光照片的背景图像和目标运动对象的运动轨迹，可以实现用户自定义目标运动对象的运动轨迹，增强流光相机拍摄模式的可操作性和趣味性，最后的成片效果更好，且通过减少对当前拍摄场景采集的帧数，有助于降低硬件功耗。
附图说明
图1是本申请实施例提供的拍摄方法的流程图；
图2是本申请实施例提供的显示第一摄像头采集的预览图像的界面示意图 之一；
图3是本申请实施例提供的显示第二摄像头采集的预览图像的界面示意图之一；
图4是本申请实施例提供的显示第一摄像头及第二摄像头采集的预览图像的界面示意图之一；
图5是本申请实施例提供的播放第一视频和第二视频的界面示意图之一；
图6是本申请实施例提供的拍摄方法的详细流程示意图；
图7是本申请实施例提供的显示第二图像的界面示意图之一；
图8是本申请实施例提供的显示第二图像的界面示意图之二；
图9是本申请实施例提供的显示第二图像的界面示意图之三；
图10是本申请实施例提供的显示第二图像的界面示意图之四；
图11是本申请实施例提供的播放第一视频和第二视频的界面示意图之二；
图12是本申请实施例提供的播放第一视频和第二视频的界面示意图之三；
图13是本申请实施例提供的拍摄装置的结构图；
图14是本申请实施例提供的电子设备的结构示意图之一；
图15是本申请实施例提供的电子设备的硬件示意图之二。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”，一般表示前后关联对象是一种“或”的关系。
现有技术中，流光相机拍摄模式都是通过RGB sensor抓帧进行算法后台处理，在固定一小段时间内生成的趣味性图片，在实际拍摄中，需要不停地对当前拍摄场景抓帧进行处理，使得设备的功耗和发热问题严重，且运动对象的运动轨迹和底片完全绑定，无法有效的分离，也无法单独调整运动对象的运动轨迹，导致操作性比较差。
下面结合附图，通过具体的实施例及其应用场景对本申请实施例提供的拍摄方法、拍摄装置、电子设备和可读存储介质进行详细地说明。
本申请实施例提供一种拍摄方法，该拍摄方法的执行主体可以为带拍摄功能的终端，包括但不限于移动终端、相机，或者终端的控制装置等。
该拍摄方法用于获取流光照片，流光照片中含有光线的运动轨迹。
如图1所示，该拍摄方法包括：步骤110和步骤120。
步骤110、通过第一摄像头采集第一图像，并通过第二摄像头采集第二图像，第一图像包括当前拍摄场景的画面，第二摄像头用于采集目标运动对象的运动轨迹，第一图像包括该目标运动对象。
需要说明的是，第一图像用于生成流光照片的背景图像，比如编辑第一图像得到流光照片的背景图像。流光照片的背景图像包括流光照片中除了目标运动对象的运动轨迹之外的其他画面。
以拍摄包括车流的街头夜景为例，第一图像可以包括：马路、马路中的栅栏、马路边的植物以及建筑物等基本处于静态的对象，或者第一图像还可以包括：光强较弱的运动对象，比如行人等；第二图像可以仅包括：行驶的车辆上的车灯的运动轨迹，第二图像可以表现为一条或多条光带。
第一摄像头可以为RGB sensor。
第二摄像头用于采集目标运动对象的运动轨迹，在实际的执行中，第二摄像头可以为DVS(神经拟态视觉传感器)。
DVS使用基于事件驱动的方式来捕捉场景中的动态变化。与传统相机不同，DVS没有“帧”的概念。当现实场景中发生变化时，DVS会产生一些像素级的输出，即事件。
一方面，DVS对数据存储和计算资源的需求非常小，并且其具有非常低的延迟，可以达到微秒级。且其只能记录运动的对象，对静止的背景画面无感知能力。
另一方面，在一些场景下，运动的目标的亮度较低，比如对于无强光照射的瀑布，RGB sensor无法有效抓取其运动轨迹，DVS可以准确捕捉该运动轨迹。
也就是说，DVS抓取运动对象的运动轨迹，不仅没有固定时间限制，而且功耗更低。
第二图像可以为流光照片中目标运动对象的运动轨迹，或者基于第二图像可以生成流光照片中目标运动对象的运动轨迹。
第一摄像头和第二摄像用于采集同一拍摄场景的对象。
以拍摄瀑布为例，瀑布水流为目标运动对象，第一图像包括瀑布水流以及在镜头范围内的其他背景，比如静止的石头、树木等；第二摄像头用于采集瀑布水流的运动轨迹，第二图像则仅包括瀑布水流的运动轨迹。
在一些实施例中，在步骤110、通过第一摄像头采集第一图像，并通过第二摄像头采集第二图像之前，该拍摄方法还可以包括：
接收用户启动相机的输入；
响应于启动相机的输入，启动第一摄像头和第二摄像头。
其中，用户启动相机的输入可以表现为如下至少一种方式：触控输入、语音输入和实体按键输入等，在此就不再展开说明。
在该步骤中，终端接收到该输入时，同时启动第一摄像头和第二摄像头。
在实际的执行中，上述步骤110可以为自动触发，比如在夜晚拍摄马路上的车流时，终端设置有光敏传感器，在光敏传感器检测到光线强度大于目标强度值的情况下，控制第一摄像头和第二摄像头自动开启，以采集上述的第一图形和第二图像。
当然，上述步骤110也可以为手动触发。
比如在用户手动拍摄的场景下，上述步骤110之前，还可以包括：
接收用户启动拍摄的输入。
需要说明的是，在本步骤中，启动拍摄的输入用于触发第一摄像头和第二摄像头来采集图像。
其中，启动拍摄的输入可以表现为如下至少一种方式：
其一，启动拍摄的输入可以表现为触控输入，包括但不限于点击输入、滑动输入和按压输入等。
在该实施方式中，接收用户启动拍摄的输入，可以表现为，接收用户在终端显示屏的显示区域的触控操作。
为了降低用户误操作率，可以将该输入的作用区域限定在特定的区域内，比如终端显示屏的显示区域的下部中间区域；或者在当前界面显示拍摄预览界面的状态下，在当前界面显示目标控件，触控目标控件即可实现启动拍摄的输入。
其二，启动拍摄的输入可以表现为实体按键输入。
在该实施例中，终端的机身上设有与拍摄对应的实体按键，接收用户启动拍摄的输入，可以表现为，接收用户按压对应的实体按键的输入。
其三，启动拍摄的输入可以表现为语音输入。
在该实施例中，终端可以在接收到语音如“流光拍摄”时，触发第一摄像头和第二摄像头来采集图像。
当然，在其他实施例中，启动拍摄的输入也可以表现为其他形式，包括但不限于字符输入等，具体可根据实际需要决定，本申请实施例对此不作限定。
终端在接收到启动拍摄的输入后，可以响应于启动拍摄的输入，控制第一摄像头采集第一图像，且控制第二摄像头采集第二图像。
第一摄像头和第二摄像头可以同步开启采集，或者第一摄像头采集完第一图像后，第二摄像头才开始采集第二图像，或者第二摄像头采集完第二图像后，第一摄像头才采集第一图像。
在一些实施例中，该拍摄方法还可以包括：
接收用户停止拍摄的输入；
响应于该停止拍摄的输入，控制第二摄像头停止图像采集，且根据第二摄像头在启动拍摄的输入与停止拍摄的输入之间采集的图像，生成第二图像。
需要说明的是，在本步骤中，停止拍摄的输入用于触发第二摄像头结束图像采集。
其中，停止拍摄的输入可以表现为如下至少一种方式：
其一，停止拍摄的输入可以表现为触控输入，包括但不限于点击输入、滑动输入和按压输入等。
在该实施方式中，接收用户的停止拍摄的输入，可以表现为，接收用户在终端显示屏的显示区域的触控输入。
为了降低用户误操作率，可以将该输入的作用区域限定在特定的区域内，比如终端显示屏的显示区域的下部中间区域；或者在当前界面显示拍摄预览界面的状态下，在当前界面显示目标控件，触控目标控件即可实现停止拍摄的输入。
其二，停止拍摄的输入可以表现为实体按键输入。
在该实施例中，终端的机身上设有与拍摄对应的实体按键，接收用户停止拍摄的输入，可以表现为，接收用户按压对应的实体按键的输入。
其三，停止拍摄的输入可以表现为语音输入。
在该实施例中，终端可以在接收到语音如“流光拍摄完成”时，触发第二摄像头结束图像采集。
当然，在其他实施例中，停止拍摄的输入也可以表现为其他形式，包括但不限于字符输入等，具体可根据实际需要决定，本申请实施例对此不作限定。
当然，在另一些实施例中，还可以通过自动识别技术控制第二摄像头结束图像采集。
比如，当处理器识别到目标运动对象停止运动(在目标时间内保持静止)或消失(采集不到光线)的情况下，控制第二摄像头停止图像采集。
步骤120、将第一图像与第二图像进行图像合成，输出目标图像。
在本步骤中，终端可以基于采集的第一图像与第二图像，将第一图像与第 二图像合成，输出合成后的目标图像，该目标图像即为流光照片。
第一图像和第二图像的尺寸可以相同，步骤120可以通过如下方式实现：用第二图像中运动轨迹上的所有像素替换第一图像中目标区域的像素，目标区域为第一图像中与运动轨迹所在区域对应位置的区域。
由于是像素的替换，整个合成过程的计算简单，且合成后的目标图像中，运动轨迹与背景图像之间的过渡流畅。
该方式实质上是用第二图像中运动轨迹对应的像素替换第一图像中对应位置的像素。
比如对于第二图像中运动轨迹的任一像素，其在第二图像中的坐标位置为：(a，b)，在该步骤中，需要在第一图像上，用第二图像中坐标位置为(a，b)的像素替换掉第一图像中坐标位置为(a，b)的像素，对第二图像中运动轨迹的每一像素均按上述方式执行，即可实现两个图像的合成。
第一图像和第二图像合成方式如下：
(1)第一图像记为A，第二图像记为B；
(2)B除开运动轨迹外，其他区域都是透明的部分；
(3)并且A和B的尺寸相同；
(4)可以直接将B覆盖到A上，B中轨迹部分直接替换A中的像素点；
(5)替换覆盖完成后，保存，则完成第一图像和第二图像的合成；
需要说明的是，上述拍摄方法中，对流光照片的背景图像和目标运动对象的运动轨迹分别独立的采集，这样，使得编辑或调整目标运动对象的运动轨迹成为可能。
根据本申请实施例提供的拍摄方法，可以应用于流光拍摄场景下，通过独立获取流光照片的背景图像和目标运动对象的运动轨迹，可以实现用户自定义目标运动对象的运动轨迹，增强流光相机拍摄模式的可操作性和趣味性，最后的成片效果更好，且通过减少对当前拍摄场景采集的帧数，有助于降低硬件功耗。
在一些实施例中，在步骤110、通过第一摄像头采集第一图像，并通过第 二摄像头采集第二图像之后，该拍摄方法还可以包括：
接收用户对第二图像的第一输入；
响应于第一输入，调整第二图像中运动轨迹的轨迹参数，输出调整轨迹参数后的第二图像；
步骤120、将第一图像与第二图像进行图像合成，包括：将第一图像与调整轨迹参数后的第二图像进行图像合成。
其中，第一输入可以表现为如下至少一种方式：
其一，第一输入可以表现为触控输入，包括但不限于点击输入、滑动输入和按压输入等。
在该实施方式中，接收用户的第一输入，可以表现为，接收用户在终端显示屏的显示区域的触控操作。
终端显示屏的显示区域可以显示目标控件，该目标控件包括多种图像编辑菜单，包括但不限于缩放、锐度调整、调色板、亮度调整等，触控该目标控件即可实现第一输入。
其二，第一输入可以表现为语音输入。
在该实施例中，终端可以在接收到语音如“放大百分之20”时，触发目标运动对象的运动轨迹放大20％。
当然，在其他实施例中，第一输入也可以表现为其他形式，包括但不限于字符输入等，具体可根据实际需要决定，本申请实施例对此不作限定。
调整第二图像中运动轨迹的轨迹参数可以改变第二图像中运动轨迹的显示效果，轨迹参数包括表征运动轨迹的轨迹属性的至少一个参数，轨迹参数包括但不限于如下至少一种：颜色、大小、位置、角度、断点和亮度等。
对应地，调整第二图像中运动轨迹的轨迹参数包括但不限于如下任一种：
(1)改变运动轨迹的颜色，比如在拍摄瀑布的情况下，运动轨迹原来的颜色大体为白色，通过选择终端显示屏的显示区域上的调色盘的颜色，可以将运动轨迹调整为蓝色或绿色，以展现瀑布对蓝天或树木的反射，增强目标运动对象的色彩效果；
(2)改变运动轨迹的大小，比如：有时想在当前画面中画一个很大的
Figure PCTCN2021132386-appb-000001
但是当前画面范围和运动轨迹的大小不好把握，可以先画一个小的
Figure PCTCN2021132386-appb-000002
生成运动轨迹后，通过触控终端显示屏的显示区域上的缩放控件对运动轨迹的大小进行调整；
(3)改变当前运动轨迹的位置，比如在第二图像采集结束后，发现运动轨迹在图像中的位置不理想，可以通过触控终端显示屏的显示区域上的平移控件将运动轨迹移动到目标位置；
(4)改变当前运动轨迹的角度，比如在第二图像采集结束后，发现运动轨迹的展示角度偏了，可以通过触控终端显示屏的显示区域上的转动控件将运动轨迹转动到目标角度；
(5)调整运动轨迹的断点，比如手持荧光棒画
Figure PCTCN2021132386-appb-000003
其中的“i”难以通过人手臂的动作呈现出清晰的字样。在操作过程中，可以直接画一个“l”，在生成运动轨迹后，通过触控终端显示屏的显示区域上的擦除控件将“l”截成两段；
(6)改变当前运动轨迹的亮度，比如在第二图像采集结束后，发现运动轨迹的亮度不足，难以与背景图像形成突出的对比，可以通过触控终端显示屏的显示区域上的亮度调节控件将运动轨迹的亮度增大。
现有技术中，在拍摄流光照片时，目标运动对象的运动轨迹和底片完全绑定，如果对目标运动对象的运动轨迹不满意，只能重新拍摄。
本申请实施例的拍摄方法，可以独立编辑或调整光线的运动轨迹，拍摄体验更佳灵活有趣，且成片效果更佳。
需要说明的是，是否需要进行编辑，可以通过提前设置来实现，或者默认无需编辑，在拍摄完成后，提供编辑选项。
在步骤110、通过第一摄像头采集第一图像，并通过第二摄像头采集第二图像之前，该拍摄方法还可以进一步包括：
显示拍摄预览界面。
在实际的执行中，可以为在接收到用户启动相机的输入的情况下，响应于 该输入，显示拍摄预览界面。
在该步骤中，终端接收到该输入时，终端显示屏的显示区域显示拍摄预览界面，以便于用户辅助取景。
其中，拍摄预览界面可以表现为如下至少一种方式：
其一，如图2所示，拍摄预览界面用于显示第一摄像头采集的预览图像Picture A。
在这种方式中，拍摄预览界面可以只显示第一摄像头采集的预览图像，这样可以为流光照片的背景图像提供比较大的取景参考图，便于实现整体构图。
其二，如图3所示，拍摄预览界面用于显示第二摄像头采集的预览图像Picture B。
在这种方式中，拍摄预览界面可以只显示第二摄像头采集的预览图像，这样可以为流光照片中的运动轨迹提供比较大的取景参考图，便于用户在正式拍摄前调整目标运动对象在照片中的位置和比例。
其三，如图4所示，拍摄预览界面包括第一拍摄预览子界面和第二拍摄预览子界面。
第一拍摄预览子界面用于显示第一摄像头采集的预览图像Picture A，第二拍摄预览子界面用于显示第二摄像头采集的预览图像Picture B。
在这种方式中，拍摄预览界面分屏显示，两个子界面分别显示第一摄像头或第二摄像头采集的预览图像，这样既能便于用户在正式拍摄前调整目标运动对象在照片中的位置和比例，又能便于用户在正式拍摄前调整整张照片的构图布局。
下面分别从两种不同的实现角度，对本申请实施例进行具体说明。
一、第一摄像头仅仅采集第一图像。
此种情况下，在第一图像和第二图像的采集过程中，该拍摄方法还可以包括：在运动轨迹开始生成的情况下，控制第一摄像头停止采集图像。
这样，采集完整拍摄场景的第一摄像头的实际工作时间更短，有助于降低终端的功耗。
可以理解的是，在该实施例中，在接收到用户启动拍摄的输入时，第一摄像头和第二摄像头均开始采集图像，当运动轨迹开始生成时，控制第一摄像头停止采集图像，第二摄像头继续采集目标运动对象的运动轨迹，这样可以实现整个拍摄过程中，第一摄像头最少可以只抓取一帧，实现功耗的最小化，且不影响流光照片的成片。
如图6所示，此种情况下，该拍摄方法的具体实现流程为：
步骤601：打开相机，此时，第一摄像头(sensor A)和第二摄像头(sensor B)同时打开预览；
第一摄像头(sensor A)正常显示当前画面的预览图像，第二摄像头(sensor B)由于当前画面中没有运动对象，没有任何画面。
步骤602：开始拍摄前可以设置用户是否需要编辑；
(1)如果用户选择不需要编辑：最终拍摄完成就会自动生成一个目标图像(即流光照片)，运动轨迹的各个轨迹属性与第二摄像头采集的是相同的；
(2)用户选择需要编辑，拍摄完成后，会输出第一图像(底片)和第二图像(运动轨迹的照片)，用户调整第二图像中的运动轨迹的轨迹参数后点击合成，与第一图像合成在一起呈现最终的目标图像(即流光照片)；
步骤603：用户点击拍摄，此时，第一摄像头(sensor A)正常曝光，抓取到第一图像(底片)。
步骤604：当第二摄像头(sensor B)检测到运动轨迹开始生成时，控制第一摄像头(sensor A)停止采集图像，第二摄像头(sensor B)一直记录目标运动对象的运动轨迹；
步骤605：当运动轨迹采集完成后，点击结束；
步骤606：如果用户在步骤602选择不编辑，则直接将第一图像和第二图像合成，输出目标图像(即流光照片)。
如果用户在步骤602选择编辑，则进行步骤607；
步骤607：对运动轨迹的轨迹参数的调整；
本申请实施例的拍摄方法可以应用于人手持荧光棒在空中比划特定文字 或图像的场景下，在生成目标图像之前，可以方便地对目标运动对象的运动轨迹进行自定义编辑，使得最后形成的目标图像的效果更好。
在拍摄人手持荧光棒，期望在空中比划出
Figure PCTCN2021132386-appb-000004
的场景下，第二摄像头采集的目标运动对象为荧光棒，采集到的第二图像如图7所示，该第二图像存在如下问题：(1)第二图像中的运动轨迹比例太小；(2)第二图像中的运动轨迹的位置不理想；(3)对于“i”，实际采集的为“1”。
通过如下方式，可以独立于第一图像，对第二图像进行编辑。
(1)通过拖动运动轨迹在当前画面的比例来调整大小，如图7所示，第二图像中的运动轨迹比例太小，通过触控缩放控件，选择表示放大的目标控件，可以将运动轨迹放大，或者通过同时触控第二图像上的两个点，并朝相互背离的方向拖动，也可以将运动轨迹放大，如图8所示，即为对运动轨迹进行放大后的第二图像；
(2)图8所示，放大后的第二图像中的运动轨迹偏置于第二图像的左上区域，通过按压运动轨迹，并在屏幕上滑动，可以实现运动轨迹的位置调整，如图9所示，即为对运动轨迹进行移动后的第二图像，此时运动轨迹被移动至中部区域；
(3)由于“i”难以实际划出，手持荧光棒的人可以直接划出“1”，采集到第二图像实际显示的是
Figure PCTCN2021132386-appb-000005
通过触控终端显示屏的显示区域上的擦除控件将“l”截成两段，输出“i”，这样第二图像被调整为图10所示的
Figure PCTCN2021132386-appb-000006
当然，还可以根据需要对运动估计得颜色、亮度、角度等进行调整，在此不再赘述。
步骤608：将调整完轨迹参数后的第二图像与第一图像合成，生成目标图像(即流光照片)，结束。
需要说明的是，步骤602也可以位于步骤605之后。
二、第一摄像头采集第一图像和第一视频，第二摄像头采集第二图像和第二视频。
此种情况下，第一图像和第二图像的采集过程中，该拍摄方法还可以包括：
采集第一视频和第二视频，第一视频包括当前拍摄场景的画面，第二视频用于记录目标运动对象形成运动轨迹的过程；
在接收到用户的第二输入的情况下，响应于第二输入，同步播放第一视频和第二视频。
可以理解的是，在该实施例中，第一视频可以通过第一摄像头采集，第二视频可以通过第二摄像头采集；或者第一视频也可以通过第三摄像头采集，第二视频可以通过第四摄像头采集。
下面仅以通过第一摄像头采集第一视频，通过第二摄像头采集第二视频为例，进行说明。
可以理解的是，在该实施例中，在接收到用户启动拍摄的输入时，第一摄像头和第二摄像头均开始采集图像，且在第一摄像头采集第一图像之后，第一摄像头继续采集第一视频，直至接收用户停止拍摄的输入；响应于停止拍摄的输入，控制第一摄像头停止采集视频，控制第二摄像头停止采集视频；最后可以得到第一图像、第二图像、第一视频和第二视频，第一图像、第二图像、第一视频和第二视频可以均存储于图库中，且第一视频和第二视频自动关联。
这样，该拍摄方法除了可以输出目标图像外，还可以输出用于表征目标图像生成过程的第一视频和第二视频，且通过同步播放第一视频和第二视频，可以实现对目标图像生成过程的直观化展示，趣味性强，具有极高的商业前景。
此种情况下，该拍摄方法的具体实现流程为：
步骤701：打开相机，此时，第一摄像头(sensor A)和第二摄像头(sensor B)同时打开预览；
第一摄像头(sensor A)正常显示当前画面的预览，第二摄像头(sensor B)由于当前画面中没有运动对象，没有任何画面。
步骤702：开始拍摄前可以设置用户是否需要编辑；
(1)如果用户选择不需要编辑：最终拍摄完成就会自动生成一个目标图像(即流光照片)，运动轨迹的各个轨迹属性与第二摄像头采集的是相同的；
(2)用户选择需要编辑，拍摄完成后，会输出第一图像(底片)和第二 图像(运动轨迹的照片)，用户调整第二图像中的运动轨迹的轨迹参数后点击合成，与第一图像合成在一起呈现最终的目标图像(即流光照片)；
步骤703：用户点击拍摄，此时，第一摄像头(sensor A)正常曝光，抓取到第一图像(底片)，并开始进行录像，最终生成第一视频(video A)；
步骤704：第二摄像头(sensor B)一直记录目标运动对象的运动轨迹，并将运动轨迹生成的画面录制下来，生成第二视频(video B)；
步骤705：当运动轨迹采集完成后，点击结束；
步骤706：如果用户在步骤702选择不编辑，则直接将第一图像和第二图像合成，输出目标图像(即流光照片)，以及关联的第一视频和第二视频。
如果用户在步骤702选择编辑，则进行步骤707；
步骤707：对运动轨迹的轨迹参数的调整，调整方式可以参考前一个实施例的描述。
步骤708：将调整完轨迹参数后的第二图像与第一图像合成，生成目标图像(即流光照片)，以及关联的第一视频和第二视频，结束。
需要说明的是，步骤702也可以位于步骤705之后。
该拍摄方法还可以包括如下步骤：在接收到用户的第二输入的情况下，响应于第二输入，同步播放第一视频和第二视频。
在该步骤中，第二输入用于在播放界面同步播放第一视频和第二视频，且如图5所示，播放界面包括第一播放子界面和第二播放子界面，第一播放子界面用于播放第一视频(Video A)，第二播放子界面用于播放第二视频(Video B)，两个视频分屏显示，通过两个视频的对比，可以看到目标图像的生成全过程。
其中，第二输入可以表现为如下至少一种方式：
其一，第二输入可以表现为触控输入，包括但不限于点击输入、滑动输入和按压输入等。
在该实施方式中，接收用户的第二输入，可以表现为，接收用户在终端显示屏的显示区域的触控操作。
比如，在图库中，点击第一视频，或者点击第二视频，或者第一视频和第 二视频显示于同一个控件，点击该控件，均能实现第一视频和第二视频的听不分屏播放。
其二，第二输入可以表现为语音输入。
在该实施例中，终端可以在接收到语音如“播放流光照片的视频”时，分屏同步播放第一视频和第二视频。
当然，在其他实施例中，第二输入也可以表现为其他形式，包括但不限于字符输入等，具体可根据实际需要决定，本申请实施例对此不作限定。
上述拍摄方法，可操作性和趣味性强，并且在光源较差的情况下，也可以得到较好的效果；并且得到一个画运动目标的运动轨迹的真实录像和该运动轨迹生成的动态画面。
需要说明的是，第二视频的内容，有如下两种表现形式：
其一，第二视频的视频帧包括，目标运动对象在从开始采集到该视频帧对应时刻的时间段内的连续轨迹。
在该实施例中，第二视频的第i个视频帧包括目标运动对象在第i时间段内的运动轨迹，第i时间段为第1时刻与第i时刻之间的时间段，第1时刻为采集第1个视频帧的时刻，第i时刻为采集第i个视频帧的时刻；
其中，i为正整数，第i个视频帧为第二视频中的任一个视频帧。
在拍摄人手持荧光棒1101，期望在空中比划出
Figure PCTCN2021132386-appb-000007
的场景下，比划的起点为
Figure PCTCN2021132386-appb-000008
上部中间的交点，在第10时刻，荧光棒1101运动到下部中间的交点，则第二视频的第10个视频帧为图11所示，第10个视频帧用于表征从第1时刻到第10时刻之间的时间段内，荧光棒1101的运动轨迹1102。
上述方法中，在同步播放第一视频和第二视频时，第一视频用于展示拍摄场景内所有对象的画面，第二视频用于展示目标运动对象的运动轨迹从无到有到完成的连续生成过程，可以实现对目标图像生成过程的直观化展示，有助于提高拍摄的趣味性。
其二，第二视频的视频帧包括，目标运动对象在当前帧对应时刻的显示位置信息。
上述显示位置信息表示运动对象在当前帧对应时刻于当前帧中的位置，且在当前帧中，该显示位置信息显示为一个光点。
在该实施例中，第二视频的第i个视频帧为采集的目标运动对象在第i时刻的图像，第i时刻为采集第i个视频帧的时刻；
其中，i为正整数，第i个视频帧为第二视频中的任一个视频帧。
在拍摄人手持荧光棒1101，期望在空中比划出
Figure PCTCN2021132386-appb-000009
的场景下，比划的起点为
Figure PCTCN2021132386-appb-000010
上部中间的交点，在第10时刻，荧光棒1101运动到下部中间的交点，如图12所示，第二视频的第10个视频帧显示为一个光点，第10个视频帧为第10时刻采集的荧光棒1101的图像，该图像仅包括荧光棒1101在第10时刻的显示位置信息，该显示位置信息可以通过用于表示荧光棒的光点1201在第10个视频帧中的位置来表达。
上述方法中，在同步播放第一视频和第二视频时，第一视频用于展示拍摄场景内所有对象的画面，第二视频用于展示目标运动对象的位置变化过程，且第二视频中目标运动对象的画面贴近真实场景，可以实现对目标图像生成过程中背景和前景的对比展示，有助于提高拍摄的趣味性。
需要说明的是，本申请实施例提供的拍摄方法，执行主体可以为拍摄装置，或者，或者该拍摄装置中的用于执行加载拍摄方法的控制模块。
本申请实施例还提供一种拍摄装置。
如图13所示，该拍摄装置包括：第一采集模块1310和第一合成模块1320。
第一采集模块1310，用于通过第一摄像头采集第一图像，并通过第二摄像头采集第二图像，第一图像包括当前拍摄场景的画面，第二摄像头用于采集目标运动对象的运动轨迹，第一图像包括目标运动对象；
第一合成模块1320，用于将第一图像与第二图像进行图像合成，输出目标图像。
在一些实施例中，该拍摄装置还可以包括：
第一接收模块，用于接收用户对第二图像的第一输入；
第一调整模块，用于响应于第一输入，调整第二图像中运动轨迹的轨迹参 数，输出调整轨迹参数后的第二图像；
第一合成模块1320，还用于将第一图像与调整轨迹参数后的第二图像进行图像合成；
其中，轨迹参数包括表征运动轨迹的轨迹属性的至少一个参数。
在一些实施例中，第一图像和第二图像的尺寸相同；
第一合成模块1320，还用于用第二图像中运动轨迹上的所有像素替换第一图像中目标区域的像素，目标区域为第一图像中与运动轨迹所在区域对应位置的区域。
在一些实施例中，该拍摄装置还可以包括：
第一显示模块，用于显示拍摄预览界面；
其中，拍摄预览界面用于显示第一摄像头采集的预览图像；
或者，拍摄预览界面用于显示第二摄像头采集的预览图像；
或者，拍摄预览界面包括第一拍摄预览子界面和第二拍摄预览子界面，第一拍摄预览子界面用于显示第一摄像头采集的预览图像，第二拍摄预览子界面用于显示第二摄像头采集的预览图像。
在一些实施例中，该拍摄装置还可以包括：
第一控制模块，用于在运动轨迹开始生成的情况下，控制第一摄像头停止采集图像。
在一些实施例中，该拍摄装置还可以包括：
第二采集模块，用于采集第一视频和第二视频，第一视频包括当前拍摄场景的画面，第二视频用于记录目标运动对象的运动过程；
第一播放模块，用于在接收到用户的第二输入的情况下，响应于第二输入，同步播放第一视频和第二视频。
在一些实施例中，第二视频的第i个视频帧包括目标运动对象在第i时间段内的运动轨迹，第i时间段为第1时刻与第i时刻之间的时间段，第1时刻为采集第1个视频帧的时刻，第i时刻为采集第i个视频帧的时刻；
或者，第二视频的第i个视频帧为采集的目标运动对象在第i时刻的图像， 第i时刻为采集第i个视频帧的时刻；
其中，i为正整数，第i个视频帧为第二视频中的任一个视频帧。
根据本申请实施例提供的拍摄装置，通过独立获取流光照片的背景图像和目标运动对象的运动轨迹，可以实现用户自定义目标运动对象的运动轨迹，增强流光相机拍摄模式的可操作性和趣味性，最后的成片效果更好，且通过减少对当前拍摄场景采集的帧数，有助于降低硬件功耗。
本申请实施例中的拍摄装置可以是装置，也可以是终端中的部件、集成电路、或芯片。该装置可以是移动电子设备，也可以为非移动电子设备。示例性的，移动电子设备可以为手机、平板电脑、笔记本电脑、掌上电脑、车载电子设备、可穿戴设备、超级移动个人计算机(ultra-mobile personal computer，UMPC)、上网本或者个人数字助理(personal digital assistant，PDA)等，非移动电子设备可以为个人计算机(personal computer，PC)、电视机(television，TV)、柜员机或者自助机等，本申请实施例不作具体限定。
本申请实施例中的拍摄装置可以为具有操作系统的装置。该操作系统可以为安卓(Android)操作系统，可以为ios操作系统，还可以为其他可能的操作系统，本申请实施例不作具体限定。
本申请实施例提供的拍摄装置能够实现图1或图6的方法实施例中拍摄装置实现的各个过程，为避免重复，这里不再赘述。
如图14所示，本申请实施例还提供一种电子设备140，包括处理器142，存储器141，存储在存储器141上并可在所述处理器142上运行的程序或指令，该程序或指令被处理器142执行时实现上述拍摄方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
需要注意的是，本申请实施例中的电子设备包括上述所述的移动电子设备和非移动电子设备。
图15为实现本申请实施例的一种电子设备的硬件结构示意图。
该电子设备1500包括但不限于：射频单元1501、网络模块1502、音频输出单元1503、输入单元1504、传感器1505、显示单元1506、用户输入单元1507、 接口单元1508、存储器1509以及处理器1510等部件。
本领域技术人员可以理解，电子设备1500还可以包括给各个部件供电的电源(比如电池)，电源可以通过电源管理系统与处理器1510逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。图15中示出的电子设备结构并不构成对电子设备的限定，电子设备可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置，在此不再赘述。
其中，输入单元1504，用于通过第一摄像头采集第一图像，并通过第二摄像头采集第二图像，第一图像包括当前拍摄场景的画面，第二摄像头用于采集目标运动对象的运动轨迹，第一图像包括目标运动对象；
处理器1510，用于将第一图像与第二图像进行图像合成，输出目标图像；
根据本申请实施例提供的电子设备，通过独立获取流光照片的背景图像和目标运动对象的运动轨迹，可以实现用户自定义目标运动对象的运动轨迹，增强流光相机拍摄模式的可操作性和趣味性，最后的成片效果更好，且通过减少对当前拍摄场景采集的帧数，有助于降低硬件功耗。
在一些实施例中，用户输入单元1507，用于接收用户对第二图像的第一输入；
处理器1510，还用于响应于所述第一输入，调整所述第二图像中所述运动轨迹的轨迹参数，输出调整轨迹参数后的第二图像；
处理器1510，还用于将所述第一图像与所述调整轨迹参数后的第二图像进行图像合成；
其中，所述轨迹参数包括表征所述运动轨迹的轨迹属性的至少一个参数。
在一些实施例中，第一图像和第二图像的尺寸相同，处理器1510，还用于用所述第二图像中所述运动轨迹上的所有像素替换所述第一图像中目标区域的像素，所述目标区域为所述第一图像中与所述运动轨迹所在区域对应位置的区域。
在一些实施例中，显示单元1506，用于显示拍摄预览界面；
其中，所述拍摄预览界面用于显示所述第一摄像头采集的预览图像；
或者，所述拍摄预览界面用于显示所述第二摄像头采集的预览图像；
或者，所述拍摄预览界面包括第一拍摄预览子界面和第二拍摄预览子界面，所述第一拍摄预览子界面用于显示所述第一摄像头采集的预览图像，所述第二拍摄预览子界面用于显示所述第二摄像头采集的预览图像。
在一些实施例中，处理器1510，还用于在所述运动轨迹开始生成的情况下，控制所述第一摄像头停止采集图像。
在一些实施例中，输入单元1504，还用于采集第一视频和第二视频，所述第一视频包括当前拍摄场景的画面，所述第二视频用于记录所述目标运动对象形成所述运动轨迹的过程；
显示单元1506，还用于在接收到用户的第二输入的情况下，响应于所述第二输入，同步播放所述第一视频和所述第二视频。
需要说明的是，本实施例中上述电子设备1500可以实现本申请实施例中方法实施例中的各个过程，以及达到相同的有益效果，为避免重复，此处不再赘述。
应理解的是，本申请实施例中，输入单元1504可以包括图形处理器(Graphics Processing Unit，GPU)15041和麦克风15042，图形处理器15041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。显示单元1506可包括显示面板15061，可以采用液晶显示器、有机发光二极管等形式来配置显示面板15061。用户输入单元1507包括触控面板15071以及其他输入设备15072。触控面板15071，也称为触摸屏。触控面板15071可包括触摸检测装置和触摸控制器两个部分。其他输入设备15072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆，在此不再赘述。存储器1509可用于存储软件程序以及各种数据，包括但不限于应用程序和操作系统。处理器1510可集成应用处理器和调制解调处理器，其中，应用处理器主要处理操作系统、用户界面和应用程序等，调制解调处理器主要处理无线通信。可以理解的是，上述调制解调处理器也可以不集成到处理器1510中。
本申请实施例还提供一种可读存储介质，所述可读存储介质上存储有程序或指令，该程序或指令被处理器执行时实现上述拍摄方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
其中，所述处理器为上述实施例中所述的电子设备中的处理器。所述可读存储介质的示例包括非暂态的计算机可读存储介质，如计算机只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等。
本申请实施例还提供了一种电子设备，包括所述电子设备被配置成用于执行上述拍摄方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
本申请实施例还提供了一种计算机程序产品，所述计算机程序产品可被处理器执行以实现如上述拍摄方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
本申请实施例另提供了一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现上述拍摄方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
应理解，本申请实施例提到的芯片还可以称为系统级芯片、系统芯片、芯片系统或片上系统芯片等。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外，需要指出的是，本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能，还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能，例如，可以按不同 于所描述的次序来执行所描述的方法，并且还可以添加、省去、或组合各种步骤。另外，参照某些示例所描述的特征可在其他示例中被组合。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述，但是本申请并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本申请的保护之内。

Claims (19)

  1. 一种拍摄方法，包括：
    通过第一摄像头采集第一图像，并通过第二摄像头采集第二图像，所述第一图像包括当前拍摄场景的画面，所述第二摄像头用于采集目标运动对象的运动轨迹，所述第一图像包括所述目标运动对象；
    将所述第一图像与所述第二图像进行图像合成，输出目标图像。
  2. 根据权利要求1所述的拍摄方法，其中，所述通过第一摄像头采集第一图像，并通过第二摄像头采集第二图像之后，所述方法还包括：
    接收用户对所述第二图像的第一输入；
    响应于所述第一输入，调整所述第二图像中所述运动轨迹的轨迹参数，输出调整轨迹参数后的第二图像；
    所述将所述第一图像与所述第二图像进行图像合成，包括：
    将所述第一图像与所述调整轨迹参数后的第二图像进行图像合成；
    其中，所述轨迹参数包括表征所述运动轨迹的轨迹属性的至少一个参数。
  3. 根据权利要求1所述的拍摄方法，其中，所述第一图像和所述第二图像的尺寸相同；
    所述将所述第一图像与所述第二图像进行图像合成，包括：
    用所述第二图像中所述运动轨迹上的所有像素替换所述第一图像中目标区域的像素，所述目标区域为所述第一图像中与所述运动轨迹所在区域对应位置的区域。
  4. 根据权利要求1所述的拍摄方法，其中，所述通过第一摄像头采集第一图像，并通过第二摄像头采集第二图像之前，所述方法还包括：
    显示拍摄预览界面，
    其中，所述拍摄预览界面用于显示所述第一摄像头采集的预览图像；
    或者，所述拍摄预览界面用于显示所述第二摄像头采集的预览图像；
    或者，所述拍摄预览界面包括第一拍摄预览子界面和第二拍摄预览子界面，所述第一拍摄预览子界面用于显示所述第一摄像头采集的预览图像，所述 第二拍摄预览子界面用于显示所述第二摄像头采集的预览图像。
  5. 根据权利要求1-4中任一项所述的拍摄方法，其中，在第一图像和第二图像的采集过程中，所述方法还包括：
    在所述运动轨迹开始生成的情况下，控制所述第一摄像头停止采集图像。
  6. 根据权利要求1-4中任一项所述的拍摄方法，其中，在所述第一图像和所述第二图像的采集过程中，所述方法还包括：
    采集第一视频和第二视频，所述第一视频包括当前拍摄场景的画面，所述第二视频用于记录所述目标运动对象形成所述运动轨迹的过程；
    在接收到用户的第二输入的情况下，响应于所述第二输入，同步播放所述第一视频和所述第二视频。
  7. 根据权利要求6所述的拍摄方法，其中，
    所述第二视频的第i个视频帧包括所述目标运动对象在第i时间段内的运动轨迹，所述第i时间段为第1时刻与第i时刻之间的时间段，所述第1时刻为采集第1个视频帧的时刻，所述第i时刻为采集所述第i个视频帧的时刻；
    或者，所述第二视频的第i个视频帧为采集的所述目标运动对象在第i时刻的图像，所述第i时刻为采集所述第i个视频帧的时刻，
    其中，i为正整数，所述第i个视频帧为所述第二视频中的任一个视频帧。
  8. 一种拍摄装置，包括：
    第一采集模块，用于通过第一摄像头采集第一图像，并通过第二摄像头采集第二图像，所述第一图像包括当前拍摄场景的画面，所述第二摄像头用于采集目标运动对象的运动轨迹，所述第一图像包括所述目标运动对象；
    第一合成模块，用于将所述第一图像与所述第二图像进行图像合成，输出目标图像。
  9. 根据权利要求8所述的拍摄装置，还包括：
    第一接收模块，用于接收用户对所述第二图像的第一输入；
    第一调整模块，用于响应于所述第一输入，调整所述第二图像中所述运动轨迹的轨迹参数，输出调整轨迹参数后的第二图像；
    其中，所述第一合成模块还用于将所述第一图像与所述调整轨迹参数后的第二图像进行图像合成，
    其中，所述轨迹参数包括表征所述运动轨迹的轨迹属性的至少一个参数。
  10. 根据权利要求8所述的拍摄装置，其中，所述第一图像和所述第二图像的尺寸相同；
    所述第一合成模块还用于用所述第二图像中所述运动轨迹上的所有像素替换所述第一图像中目标区域的像素，所述目标区域为所述第一图像中与所述运动轨迹所在区域对应位置的区域。
  11. 根据权利要求8所述的拍摄装置，还包括：
    第一显示模块，用于显示拍摄预览界面，
    其中，所述拍摄预览界面用于显示所述第一摄像头采集的预览图像；
    或者，所述拍摄预览界面用于显示所述第二摄像头采集的预览图像；
    或者，所述拍摄预览界面包括第一拍摄预览子界面和第二拍摄预览子界面，所述第一拍摄预览子界面用于显示所述第一摄像头采集的预览图像，所述第二拍摄预览子界面用于显示所述第二摄像头采集的预览图像。
  12. 根据权利要求8-11中任一项所述的拍摄装置，还包括：
    第一控制模块，用于在所述运动轨迹开始生成的情况下，控制所述第一摄像头停止采集图像。
  13. 根据权利要求8-11中任一项所述的拍摄装置，还包括：
    第二采集模块，用于采集第一视频和第二视频，所述第一视频包括当前拍摄场景的画面，所述第二视频用于记录所述目标运动对象的运动过程；
    第一播放模块，用于在接收到用户的第二输入的情况下，响应于所述第二输入，同步播放所述第一视频和所述第二视频。
  14. 根据权利要求13所述的拍摄装置，其中，
    所述第二视频的第i个视频帧包括所述目标运动对象在第i时间段内的运动轨迹，所述第i时间段为第1时刻与第i时刻之间的时间段，所述第1时刻为采集第1个视频帧的时刻，所述第i时刻为采集所述第i个视频帧的时刻；
    或者，所述第二视频的第i个视频帧为采集的所述目标运动对象在第i时刻的图像，所述第i时刻为采集所述第i个视频帧的时刻，
    其中，i为正整数，所述第i个视频帧为所述第二视频中的任一个视频帧。
  15. 一种电子设备，包括处理器，存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现如权利要求1-7中任一项所述的拍摄方法的步骤。
  16. 一种可读存储介质，所述可读存储介质上存储程序或指令，所述程序或指令被处理器执行时实现如权利要求1-7中任一项所述的拍摄方法的步骤。
  17. 一种电子设备，被配置成用于执行如权利要求1-7中任一项所述的拍摄方法的步骤。
  18. 一种计算机程序产品，所述计算机程序产品可被处理器执行以实现如权利要求1至7中任一项所述的拍摄方法的步骤。
  19. 一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现如权利要求1-7中任一项所述的拍摄方法的步骤。
PCT/CN2021/132386 2020-11-30 2021-11-23 拍摄方法、拍摄装置和电子设备 Ceased WO2022111463A1 (zh)

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