WO2024066471A1 - 一种数据采集设备、方法、装置及存储介质 - Google Patents
一种数据采集设备、方法、装置及存储介质 Download PDFInfo
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- WO2024066471A1 WO2024066471A1 PCT/CN2023/099341 CN2023099341W WO2024066471A1 WO 2024066471 A1 WO2024066471 A1 WO 2024066471A1 CN 2023099341 W CN2023099341 W CN 2023099341W WO 2024066471 A1 WO2024066471 A1 WO 2024066471A1
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/50—Image enhancement or restoration using two or more images, e.g. averaging or subtraction
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
- G01B11/25—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. one or more lines, moiré fringes on the object
- G01B11/2518—Projection by scanning of the object
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
- G01B11/25—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. one or more lines, moiré fringes on the object
- G01B11/2545—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. one or more lines, moiré fringes on the object with one projection direction and several detection directions, e.g. stereo
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/50—Depth or shape recovery
- G06T7/521—Depth or shape recovery from laser ranging, e.g. using interferometry; from the projection of structured light
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/50—Depth or shape recovery
- G06T7/55—Depth or shape recovery from multiple images
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B2210/00—Aspects not specifically covered by any group under G01B, e.g. of wheel alignment, caliper-like sensors
- G01B2210/52—Combining or merging partially overlapping images to an overall image
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10028—Range image; Depth image; 3D point clouds
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/20—Special algorithmic details
- G06T2207/20212—Image combination
- G06T2207/20221—Image fusion; Image merging
Definitions
- the present application relates to the field of data processing technology, and in particular to a data acquisition device, method, apparatus and storage medium.
- a depth image of the above objects can be obtained, and the three-dimensional data such as length, width and height of the objects can be determined based on the depth image.
- a laser light source is usually used to emit laser light to an object, and then a camera is used to capture an image of the object, detect deformation information of the laser light in the image, and obtain a depth image of the object based on the deformation information. Subsequently, three-dimensional data of the object can be obtained based on the depth information in the depth image.
- the above-mentioned solution can be used to obtain a depth image of an object, reflection, refraction, and other reasons on the surface of the object may interfere with the laser light irradiating the object, resulting in low accuracy of the deformation information obtained when detecting the deformation information of the laser light in the image, resulting in low accuracy of the depth image of the object obtained.
- the purpose of the embodiments of the present application is to provide a data acquisition device, method, apparatus and storage medium to improve the accuracy of the depth image of the object obtained.
- the specific technical solution is as follows:
- an embodiment of the present application provides a data acquisition device, the data acquisition device comprising: a depth camera, a laser light source, a scanning mirror, a laser camera, and a processor, wherein:
- the depth camera is used to: collect an initial depth image of the object to be measured;
- the laser light source is used to emit laser light to the scanning mirror, and the scanning mirror is used to reflect the laser light to the object to be measured in a scanning manner;
- the laser camera is used to: collect a line laser image of the object to be measured during scanning;
- the processor is used to: fuse different line laser images based on the initial depth image to obtain a target depth image of the object to be measured.
- the processor is specifically configured to:
- the different line laser images are fused to obtain the target depth image of the object to be measured.
- the processor in a static scanning scenario, is specifically configured to:
- the same initial depth image is used as the reference to fuse each line laser image.
- the depth camera is specifically used to: collect multiple frames of initial depth images of the object to be measured;
- the processor is specifically used for:
- the different line laser images are fused to obtain the target depth image of the object to be measured.
- the depth camera in a dynamic scanning scenario, is specifically used to: collect multiple frames of initial depth images of the object to be measured during the dynamic scanning process, wherein the collection time of each frame of the initial depth image is synchronized with the collection time of each frame of the line laser image;
- the processor is specifically used for:
- the different line laser images are fused to obtain the target depth image of the object to be measured.
- the processor is specifically used to:
- differences between the different initial depth images are obtained, and the differences between the different initial depth images are used to calculate the posture change information of the depth camera, and the calculated posture change information is used to correct the positions of the matching areas corresponding to the different line laser images in the different initial depth images;
- the different line laser images are fused to obtain the target depth image of the object to be measured.
- the depth camera comprises: a time-of-flight TOF light source and a TOF camera, wherein the TOF light source is used to: emit TOF light to the object to be measured;
- the TOF camera is used to obtain an initial depth image of the object to be measured according to the flight time of the TOF light, wherein the flight time is the time between the emission moment of the TOF light from the TOF light source and the reception moment of the TOF light reflected by the object to be measured by the TOF camera.
- the laser camera is a binocular camera
- the laser light source is a multi-line laser light source or a single-line laser light source.
- the scanning mirror includes a reflecting mirror and a motion mechanism, and the motion mechanism is used to drive the reflecting mirror to move.
- an embodiment of the present application provides a data acquisition method, the method is applied to a processor in a data acquisition device, the data acquisition device further comprising: a depth camera, a laser light source, a scanning mirror, and a laser camera;
- the method comprises:
- the method of fusing different line laser images based on the initial depth map to obtain a target depth image of the object to be measured includes:
- the different line laser images are fused to obtain the target depth image of the object to be measured.
- the initial depth map is used as a reference to fuse different line laser images to obtain a target depth image of the object to be measured, including:
- each line laser image is fused to obtain a target depth image of the object to be measured;
- the received multiple frames of initial depth images are fused to obtain a fused depth image; for each line laser image, a matching area of the line laser image in the fused depth image is determined; according to the distribution positions of the matching areas corresponding to different line laser images in the fused depth image, different line laser images are fused to obtain a target depth image of the object to be measured.
- the initial depth map is used as a reference to fuse different line laser images to obtain a target depth image of the object to be measured, including:
- the different line laser images are fused to obtain the target depth image of the object to be measured.
- the different line laser images are fused according to the distribution positions of the matching areas corresponding to the different line laser images in the different initial depth images to obtain the target depth image of the object to be measured, including:
- differences between the different initial depth images are obtained, and the differences between the different initial depth images are used to calculate the posture change information of the depth camera, and the calculated posture change information is used to correct the positions of the matching areas corresponding to the different line laser images in the different initial depth images;
- the different line laser images are fused to obtain the target depth image of the object to be measured.
- the present application provides a data acquisition device, which is arranged in a data acquisition device.
- the data acquisition device further comprises: a depth camera, a laser light source, a scanning mirror, and a laser camera;
- the device comprises:
- a first image receiving module configured to receive an initial depth image of the object to be measured obtained by the depth camera
- a second image receiving module is used to receive a line laser image of the object to be measured acquired by the laser camera, wherein the line laser image is acquired by the laser camera during the process in which the scanning mirror reflects the laser light emitted by the laser light source to the scanning mirror toward the object to be measured in a scanning manner;
- the target depth map determination module is used to fuse different line laser images based on the initial depth map to obtain a target depth image of the object to be measured.
- the target depth map determination module is specifically used to:
- the different line laser images are fused to obtain the target depth image of the object to be measured.
- the target depth map determination module is specifically used to:
- each line laser image is fused to obtain a target depth image of the object to be measured;
- the received multiple frames of initial depth images are fused to obtain a fused depth image; for each line laser image, a matching area of the line laser image in the fused depth image is determined; according to the distribution positions of the matching areas corresponding to different line laser images in the fused depth image, different line laser images are fused to obtain a target depth image of the object to be measured.
- the target depth map determination module includes:
- the region determination submodule is used to determine, for each line laser image, a matching region of the line laser image in the synchronously acquired initial depth image;
- the target depth map determination submodule is used to fuse different line laser images according to the distribution positions of the matching areas corresponding to the different line laser images in different initial depth images to obtain the target depth image of the object to be measured.
- the target depth map determination submodule is specifically used to:
- differences between the different initial depth images are obtained, and the differences between the different initial depth images are used to calculate the posture change information of the depth camera, and the calculated posture change information is used to correct the positions of the matching areas corresponding to the different line laser images in the different initial depth images;
- the different line laser images are fused to obtain the target depth image of the object to be measured.
- an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method steps described in any one of the second aspects are implemented.
- an embodiment of the present application further provides a computer program product comprising instructions, which, when executed on a computer, enables the computer to execute any of the method steps described in the second aspect above.
- the data acquisition device includes: a depth camera, a laser light source, a scanning mirror, a laser camera, and a processor, wherein: the depth camera is used to: acquire the initial depth image of the object to be measured; the laser light source is used to: emit laser light to the scanning mirror; the scanning mirror is used to: reflect the laser light to the object to be measured in a scanning manner; the laser camera is used to: acquire the line laser image of the object to be measured during the scanning process; the processor is used to: fuse different line laser images based on the initial depth image to obtain the target depth image of the object to be measured.
- the depth camera is used to: acquire the initial depth image of the object to be measured
- the laser light source is used to: emit laser light to the scanning mirror
- the scanning mirror is used to: reflect the laser light to the object to be measured in a scanning manner
- the laser camera is used to: acquire the line laser image of the object to be measured during the scanning process
- the processor is used to: fuse different line laser images based on the initial depth image to obtain
- the initial depth image of the object to be measured can be obtained by using the depth camera, and the laser light source is used to emit laser light to the scanning mirror, the scanning mirror reflects the laser light to the object to be measured in a scanning manner, the laser camera acquires the line laser image of the object to be measured during the scanning process, and the processor combines the initial depth image and the line laser image to obtain the target depth image of the object to be measured, wherein, due to the concentrated laser line energy, the imaging quality of the line laser image is relatively high, for example, the line laser image can obtain better imaging quality on a highly reflective surface or a black surface, and the embodiment of the present application can obtain a more accurate target depth image based on the line laser image with high imaging quality. It can be seen that the application of the solution provided in the embodiment of the present application can improve the accuracy of the target depth image of the object obtained.
- FIG1 is a schematic diagram of the structure of a data acquisition device provided in an embodiment of the present application.
- FIG2 is a schematic diagram of the structure of another data acquisition device provided in an embodiment of the present application.
- FIG3 is a flow chart of a data collection method provided in an embodiment of the present application.
- FIG. 4 is a schematic diagram of the structure of a data acquisition device provided in an embodiment of the present application.
- the embodiments of the present application provide a data acquisition device, method, apparatus and storage medium, which are respectively introduced in detail below.
- the embodiment of the present application provides a data acquisition device, which includes: a depth camera, a laser light source, a scanning mirror, a laser camera, and a processor, wherein:
- the depth camera is used to: collect the initial depth image of the object to be measured;
- the laser light source is used to emit laser light to the scanning mirror, and the scanning mirror is used to reflect the laser light to the object to be measured in a scanning manner;
- the laser camera is used to: collect a line laser image of the object to be measured during the scanning process;
- the processor is used to: fuse different line laser images based on the initial depth image to obtain a target depth image of the object to be measured.
- the depth camera can be used to obtain the initial depth image of the object to be measured, and then the laser light source can be used to emit laser light to the scanning mirror, and the scanning mirror can reflect the laser light to the object to be measured in a scanning manner.
- the laser camera collects the line laser image of the object to be measured during the scanning process, and the processor combines the initial depth image and the line laser image to obtain the target depth image of the object to be measured. It can be seen that the accuracy of the target depth image of the object obtained by applying the solution provided in the embodiment of the present application can be improved.
- FIG. 1 is a schematic diagram of the structure of a data acquisition device provided in an embodiment of the present application.
- the data acquisition device includes: a depth camera 101, a laser light source 102, a scanning mirror 103, a laser camera 104, and a processor 105, wherein:
- the depth camera 101 is used to: collect an initial depth image of the object to be measured;
- the laser light source 102 is used to emit laser light to the scanning mirror 103, and the scanning mirror 103 is used to reflect the laser light to the object to be measured in a scanning manner;
- the process in which the laser light source 102 emits laser light to the scanning mirror 103 to scan the object to be measured can be referred to as galvanometer scanning.
- the laser camera 104 is used to: collect a line laser image of the object to be measured during the scanning process;
- the processor 105 is used to fuse different line laser images based on the initial depth image to obtain a target depth image of the object to be measured.
- the laser light source 102 is a multi-line laser light source or a single-line laser light source.
- the laser light emitted by the laser light source 102 may be a linear light, a planar light, a dot matrix light, etc.
- the laser camera 104 may be a monocular camera, a binocular camera, etc.
- the relative position relationship between the depth camera 101 and the laser camera 104 remains unchanged during the image acquisition process.
- the depth camera 101 and the laser camera 104 may be fixedly connected via connecting rods, connecting plates or other connecting parts to ensure that the relative position relationship between the depth camera 101 and the laser camera 104 remains unchanged.
- the depth camera 101 and the laser camera 104 can be installed separately.
- the postures of the two cameras can be calibrated when installing them to ensure that the relative posture relationship of the two cameras remains unchanged during the image acquisition process.
- the relative posture relationship of the two cameras can be preset. When installing the two cameras, one of the cameras is installed first, and then the posture of the other camera is determined according to the posture of the installed camera and the preset relative posture relationship, so that the other camera is installed according to the determined posture.
- the depth camera 101 and the laser camera 104 are respectively connected to the processor 105 in a wired or wireless manner, so that the processor 105 can obtain the image of the object to be measured captured by the depth camera 101 and the laser camera 104 .
- the above-mentioned objects to be tested may be people, bolts, wrenches, etc.
- the processor 105 can process different line laser images based on the camera parameters of the depth camera 101 and the laser camera 104.
- the camera parameters may include: internal parameters of the depth camera 101, internal parameters of the laser camera 104, and the posture conversion relationship between the depth camera 101 and the laser camera 104, etc.
- the internal parameters refer to the focal length, center point, distortion coefficient, etc.
- the camera parameters may be pre-calibrated.
- the laser light source 102 can emit laser light to the scanning mirror 103, and the scanning mirror 103 reflects the laser light onto the object to be measured.
- the laser camera 104 then collects a line laser image of the object to be measured. Since the surface of the object to be measured is often not a plane, the laser light distributed on the surface of the object to be measured in the line laser image will be deformed. The deformation can reflect the depth information of the surface of the object to be measured.
- the laser camera 104 can send the line laser image to the processor 105.
- the above-mentioned scanning mirror 103 can be a mechanical mirror or a MEMS (Micro-Electro-Mechanical System) mirror.
- MEMS Micro-Electro-Mechanical System
- the scanning mirror 103 includes a reflecting mirror and a motion mechanism, and the motion mechanism is used to drive the reflecting mirror to move.
- the processor 105 may receive the initial depth image and the line laser image, and then determine the target depth image of the object to be measured based on the initial depth image, the line laser image, and the camera parameters of the depth camera 101 and the laser camera 104 .
- the processor 105 may fuse the line laser images of different frames based on the same frame of initial depth image, or may fuse the line laser images based on different frame of initial depth images.
- processor 105 for fusing the line laser images can be found in the subsequent embodiments and will not be described in detail here.
- the depth camera 101 is used to collect an initial depth image of the object to be measured.
- the depth camera 101 may be a TOF (Time of flight) camera, including a TOF light source and a TOF camera.
- the TOF light emitted by the TOF light source may be a point light, a linear light, a surface light, a dot matrix light, a light spot, etc.
- the TOF camera may be a monocular camera, a binocular camera, etc.
- the above-mentioned TOF camera can adopt iTOF (Indirect Time-of-Flight) technology or DTOF (Direct Time-of-Flight) technology to acquire depth images, and can obtain initial depth images at the cm (centimeter) level.
- iTOF Indirect Time-of-Flight
- DTOF Direct Time-of-Flight
- the TOF camera is used to obtain an initial depth image of the object to be measured based on the flight time of the TOF light, wherein the flight time is the time between the emission moment of the TOF light from the TOF light source and the reception moment of the TOF light reflected by the object to be measured by the TOF camera.
- the TOF light source can emit TOF light to the object to be measured
- the object to be measured can reflect the TOF light
- the TOF camera can receive the TOF light reflected by the object to be measured, and determine the emission time of the TOF light emitted by the TOF light source and the reception time of the TOF light reflected by the object to be measured by the TOF camera, calculate the time difference between the emission time and the reception time as the flight time of the TOF light from the TOF light source to the object to be measured and from the object to be measured to the TOF camera, calculate the distance between the TOF camera and the object to be measured according to the flight time and the propagation speed of the TOF light, obtain the depth image of the object to be measured according to the distance, and use it as the initial depth image.
- the processor 105 sends the initial depth image.
- the depth camera 101 can be used to first obtain the initial depth image of the object to be measured, and then the laser light source 102 can be used to emit laser light to the scanning mirror 103, and the scanning mirror 103 can reflect the laser light to the object to be measured in a scanning manner.
- the laser camera 104 collects the line laser image of the object to be measured during the scanning process, and the processor 105 combines the initial depth image and the line laser image to obtain the target depth image of the object to be measured. It can be seen that the solution provided in the embodiment of the present application can improve the accuracy of the target depth image of the object obtained.
- the processor 105 is specifically configured to:
- a matching area of the line laser image in the initial depth image is determined.
- the different line laser images are fused to obtain the target depth image of the object to be measured.
- the line laser image and the initial depth image are images of the same object to be measured acquired by different cameras. Therefore, both the line laser image and the initial depth image contain the object area corresponding to the same object to be measured. Since the laser camera acquires the image of the object to be measured in the process of scanning the object to be measured with laser light, the area where the laser light is located in the line laser image belongs to the object area corresponding to the object to be measured. In view of this, the matching area of the above-mentioned line laser image in the initial depth image can be understood as the area corresponding to the part of the object to be measured corresponding to the area where the laser light is located in the line laser image in the initial depth image.
- the object to be measured may be a bolt
- the line laser image may be an image of the bolt captured by a laser camera when the laser light scans the nut of the bolt
- the initial depth image may be an image of the bolt captured by the depth camera.
- the matching area of the laser image in the initial depth image may be understood as the area corresponding to the nut of the bolt in the initial depth image.
- Different line laser images are collected at different times, and the areas where the laser light is located in the images are also different.
- the matching area of the line laser image can be determined in the initial depth image.
- image feature matching can be performed on the line laser image and the initial depth image to determine the area in the initial depth image that corresponds to the same real scene as the line laser image, that is, the image features of the area where the laser light is located in the line laser image are extracted, and the image features of the initial depth image are extracted, and feature matching is performed on the image features extracted from the two images, so that features in the features of the initial depth image that match the image features of the line laser image can be determined, and the image area represented by the matched features can be determined in the initial depth image as the above-mentioned matching area.
- the same real scene can be understood as the object area of the object to be measured.
- the object to be measured is a bolt
- the object area of the object to be measured can be the area where the nut of the bolt is located.
- the area in the initial depth image corresponding to the same real scene is the matching area.
- the distribution position of the matching area corresponding to each line laser image in the initial depth image and the area content of the area where the laser light in each line laser image is located can be spliced together to obtain a spliced image as the above-mentioned target depth image.
- the line laser images may be fused based on a solution in the related art, which will not be described in detail here.
- Scanning the object to be measured using laser light can be divided into static scanning and dynamic scanning.
- static scanning scenario the object to be measured and the data acquisition device remain relatively still during the scanning process;
- dynamic scanning scenario the object to be measured and the data acquisition device move relative to each other during the scanning process.
- the processor 105 may fuse the laser line images in any of the following two implementations.
- the processor 105 is specifically configured to:
- the same initial depth image is used as a reference to fuse the line laser images to obtain the target depth image of the object to be measured.
- the depth camera 101 is specifically used to: collect multiple frames of initial depth images of the object to be measured;
- the processor 105 is specifically configured to:
- the different line laser images are fused to obtain the target depth image of the object to be measured.
- the depth camera 101 is specifically used to: collect multiple frames of initial depth images of the object to be measured during the dynamic scanning process, wherein the collection time of each frame of the initial depth image is synchronized with the collection time of each frame of the line laser image;
- the processor 105 is specifically used for:
- the different line laser images are fused to obtain the target depth image of the object to be measured.
- the process of performing image feature matching based on the line laser images collected at different times and the initial depth image can be called feature matching in the time domain.
- the processor 105 is specifically configured to:
- differences between the different initial depth images are obtained, and the differences between the different initial depth images are used to calculate the posture change information of the depth camera 101, and the calculated posture change information is used to correct the positions of the matching areas corresponding to the different line laser images in the different initial depth images;
- the different line laser images are fused to obtain the target depth image of the object to be measured.
- a schematic diagram of the structure of another data acquisition device provided in an embodiment of the present application, wherein the data acquisition device comprises a TOF light source, a TOF camera, a laser light source, a laser camera, a processor, and a galvanometer.
- the laser camera can be divided into a left camera and a right camera.
- the TOF light source, the TOF camera, the laser light source, the laser camera, the processor, and the galvanometer are fixedly mounted on a connecting board, wherein:
- the galvanometer is similar to the scanning mirror mentioned above, and is used to reflect laser light toward the object to be measured in a scanning manner.
- the laser light source is used to: emit laser light to the galvanometer, and the galvanometer reflects the received laser light to the object to be measured, so as to scan the object to be measured by using the laser light;
- the laser camera is used to: collect multiple frames of laser images of the object to be measured during the scanning process;
- the TOF light source is used to: emit TOF light to the object to be measured;
- the TOF camera is used to: during the scanning process, obtain multiple frames of initial depth images of the object to be measured according to the flight time of the TOF light, wherein the acquisition time of each frame of the initial depth image is synchronized with the acquisition time of each frame of the laser image;
- the processor is used to: for each laser image, take the initial depth map collected synchronously with the laser image as a reference, and obtain a reference depth map of the object to be measured according to the laser image and the camera parameters of the TOF camera and the laser camera; fuse multiple reference depth maps to obtain a target depth map of the object to be measured.
- the data acquisition device includes: a time-of-flight TOF light source, a TOF camera, a laser light source, a laser camera, and a processor, wherein: the TOF light source is used to: emit TOF light to the object to be measured; the TOF camera is used to: obtain the initial depth image of the object to be measured according to the flight time of the TOF light, wherein the flight time is: the time between the emission moment of the TOF light emitted by the TOF light source and the reception moment of the TOF light reflected by the object to be measured; the laser light source is used to: emit laser light to the object to be measured; the laser camera is used to: collect the laser image of the object to be measured; the processor is used to: determine the target depth map of the object to be measured based on the laser image and the camera parameters of the TOF camera and the laser camera based on the initial depth map.
- the TOF light source is used to: emit TOF light to the object to be measured
- the TOF camera is used to: obtain the initial depth
- the initial depth image of the object to be measured can be first obtained by using the TOF light, and then the initial depth image and the laser image are fused based on the camera parameters of the TOF camera and the laser camera, and the depth image of the object to be measured is obtained by combining the initial depth image and the laser image. It can be seen that the accuracy of the depth image of the object obtained by applying the scheme provided in the above embodiment can be improved.
- the data acquisition device further includes: a depth camera, a laser light source, a scanning mirror, and a laser camera.
- the relative posture relationship between the depth camera and the laser camera remains unchanged during the image acquisition process, and in one case, the depth camera is fixedly connected to the laser camera.
- the method comprises:
- the line laser image is collected by the laser camera when the scanning mirror reflects the laser light emitted by the laser light source to the scanning mirror toward the object to be measured in a scanning manner.
- step S301 can be executed first, and then step S302; step S302 can be executed first, and then step S301; step S301 and step S302 can also be executed in parallel.
- the method of fusing different line laser images based on the initial depth map to obtain a target depth image of the object to be measured includes:
- the different line laser images are fused to obtain the target depth image of the object to be measured.
- the data acquisition solution provided in the embodiments of the present application can improve the accuracy of obtaining the target depth image of the object to be measured.
- the initial depth map is used as a reference to fuse different line laser images to obtain a target depth image of the object to be measured, including:
- each line laser image is fused to obtain a target depth image of the object to be measured.
- the data acquisition solution provided in the embodiments of the present application can improve the accuracy of obtaining the target depth image of the object to be measured.
- the initial depth map is used as a reference to fuse different line laser images to obtain a target depth image of the object to be measured, including:
- the collected multiple frames of initial depth images are fused to obtain a fused depth image; for each line laser image, the matching area of the line laser image in the fused depth image is determined; according to the distribution positions of the matching areas corresponding to different line laser images in the fused depth image, different line laser images are fused to obtain a target depth image of the object to be measured.
- the fused depth image contains more comprehensive three-dimensional object information of the object to be measured.
- the matching area corresponding to the line laser image can be accurately determined in the fused depth image, so that different line laser images are fused according to the distribution positions of the more accurate matching areas corresponding to each line laser image to obtain the above-mentioned target depth image, which can improve the accuracy of the obtained target depth image.
- the initial depth map is used as a reference to fuse different line laser images to obtain a target depth image of the object to be measured, including:
- the different line laser images are fused to obtain the target depth image of the object to be measured.
- the data acquisition solution provided in the embodiments of the present application can improve the accuracy of obtaining the target depth image of the object to be measured.
- the different line laser images are fused according to the distribution positions of the matching areas corresponding to the different line laser images in the different initial depth images to obtain the target depth image of the object to be measured, including:
- the different line laser images are fused to obtain the target depth image of the object to be measured.
- the position of the matching areas corresponding to different line laser images in different initial depth images can be corrected. This can improve the accuracy of the matching areas corresponding to different line laser images in different initial depth images, and thus the different line laser images can be fused according to the distribution positions of the matching areas after the position correction, which can improve the accuracy of the obtained target depth image.
- each of the above method embodiments also has the following beneficial effects:
- the depth camera can be used to obtain the initial depth image of the object to be measured
- the laser light source can be used to emit laser light to the scanning mirror, and the scanning mirror reflects the laser light to the object to be measured in a scanning manner.
- the laser camera collects the line laser image of the object to be measured during the scanning process, and the processor combines the initial depth image and the line laser image to obtain the target depth image of the object to be measured. It can be seen that the accuracy of the target depth image of the object obtained by applying the solution provided in the embodiment of the present application can be improved.
- FIG 4 is a schematic diagram of the structure of a data acquisition device provided in an embodiment of the present application.
- the device is set in a processor in a data acquisition device, and the data acquisition device also includes: a depth camera, a laser light source, a scanning mirror, and a laser camera.
- the relative posture relationship between the depth camera and the laser camera remains unchanged during the image acquisition process.
- the depth camera is fixedly connected to the laser camera.
- the device comprises:
- a first image receiving module 401 is used to receive an initial depth image of the object to be measured obtained by the depth camera;
- the second image receiving module 402 is used to receive the line laser image of the object to be measured acquired by the laser camera, wherein the line laser image is acquired by the laser camera when the scanning mirror reflects the laser light emitted by the laser light source to the scanning mirror in a scanning manner toward the object to be measured;
- the target depth map determination module 403 is used to fuse different line laser images based on the initial depth map to obtain a target depth image of the object to be measured.
- the embodiment of the present application can obtain a more accurate target depth image based on the line laser image with higher imaging quality. It can be seen that the accuracy of the target depth image of the object obtained by applying the scheme provided in the embodiment of the present application can be improved.
- the target depth map determination module 403 is specifically used to:
- the different line laser images are fused to obtain the target depth image of the object to be measured.
- the data acquisition solution provided in the embodiments of the present application can improve the accuracy of obtaining the target depth image of the object to be measured.
- the target depth map determination module 403 is specifically used to:
- each line laser image is fused to obtain a target depth image of the object to be measured.
- the data acquisition solution provided in the embodiments of the present application can improve the accuracy of obtaining the target depth image of the object to be measured.
- the target depth map determination module 403 is specifically used to:
- the collected multiple frames of initial depth images are fused to obtain a fused depth image; for each line laser image, the matching area of the line laser image in the fused depth image is determined; according to the distribution positions of the matching areas corresponding to different line laser images in the fused depth image, different line laser images are fused to obtain a target depth image of the object to be measured.
- the fused depth image contains more comprehensive three-dimensional object information of the object to be measured.
- the matching area corresponding to the line laser image can be accurately determined in the fused depth image, so that according to the distribution position of the more accurate matching area corresponding to each line laser image, the different line laser images are memorized and fused to obtain the above-mentioned target depth image, which can improve the accuracy of the obtained target depth image.
- the target depth map determination module 403 includes:
- the region determination submodule is used to determine, for each line laser image, a matching region of the line laser image in the synchronously acquired initial depth image;
- the target depth map determination submodule is used to fuse different line laser images according to the distribution positions of the matching areas corresponding to the different line laser images in different initial depth images to obtain the target depth image of the object to be measured.
- the data acquisition solution provided in the embodiments of the present application can improve the accuracy of obtaining the target depth image of the object to be measured.
- the target depth map determination submodule is specifically used to:
- the different line laser images are fused to obtain the target depth image of the object to be measured.
- the position of the matching areas corresponding to different line laser images in different initial depth images can be corrected. This can improve the accuracy of the matching areas corresponding to different line laser images in different initial depth images, and thus the different line laser images can be fused according to the distribution positions of the matching areas after the position correction, which can improve the accuracy of the obtained target depth image.
- each of the above device embodiments also has the following beneficial effects:
- a depth camera can be used to obtain an initial depth image of the object to be measured, and then a laser light source is used to emit laser light to a scanning mirror, and the scanning mirror reflects the laser light to the object to be measured in a scanning manner.
- the laser camera collects a line laser image of the object to be measured during the scanning process, and the processor combines the initial depth image and the line laser image to obtain a target depth image of the object to be measured. It can be seen that the accuracy of the target depth image of the object obtained by applying the solution provided in the embodiment of the present application can be improved.
- a computer-readable storage medium in which a computer program is stored.
- the computer program is executed by a processor, the steps of any of the above-mentioned data acquisition methods are implemented.
- a computer program product including instructions is also provided, which, when executed on a computer, enables the computer to execute any of the data collection methods in the above embodiments.
- the computer program product includes one or more computer instructions.
- the computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
- the computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
- the computer instructions can be transmitted from a website site, a computer, a server or a data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center.
- the computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server, a data center, etc. that contains one or more available media integrated.
- the available medium can be a magnetic medium, (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), etc.
- the data acquisition device includes: a depth camera, a laser light source, a scanning mirror, a laser camera, and a processor, wherein: the depth camera is used to: acquire an initial depth image of the object to be measured; the laser light source is used to: emit laser light to the scanning mirror; the scanning mirror is used to: reflect the laser light to the object to be measured in a scanning manner; the laser camera is used to: acquire a line laser image of the object to be measured during the scanning process; the processor is used to: fuse different line laser images based on the initial depth image to obtain a target depth image of the object to be measured.
- the depth camera is used to: acquire an initial depth image of the object to be measured
- the laser light source is used to: emit laser light to the scanning mirror
- the scanning mirror is used to: reflect the laser light to the object to be measured in a scanning manner
- the laser camera is used to: acquire a line laser image of the object to be measured during the scanning process
- the processor is used to: fuse different line laser images based on the initial depth
- the depth camera can be used to first obtain the initial depth image of the object to be measured, and then the laser light source can be used to emit laser light to the scanning mirror, the scanning mirror can reflect the laser light to the object to be measured in a scanning manner, the laser camera can acquire a line laser image of the object to be measured during the scanning process, and the processor can combine the initial depth image to obtain the target depth image of the object to be measured.
- the target depth image of the object to be measured is obtained by using the solution provided in the embodiment of the present application.
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Abstract
Description
Claims (16)
- 一种数据采集设备,其特征在于,所述数据采集设备包括:深度相机、激光光源、扫描转镜、激光相机、处理器,其中:所述深度相机用于:采集待测对象的初始深度图像;所述激光光源用于:向所述扫描转镜发射激光光线,所述扫描转镜用于:以扫描的方式向所述待测对象反射所述激光光线;所述激光相机用于:在扫描过程中采集所述待测对象的线激光图像;所述处理器用于:以所述初始深度图像为基准,对不同线激光图像进行融合,得到所述待测对象的目标深度图像。
- 根据权利要求1所述的设备,其特征在于,所述处理器,具体用于:针对每一线激光图像,确定该线激光图像在所述初始深度图像中的匹配区域;按照不同线激光图像对应的匹配区域在所述初始深度图像中的分布位置,对不同线激光图像进行融合,得到所述待测对象的目标深度图像。
- 根据权利要求1所述的设备,其特征在于,在静态扫描场景下,所述处理器具体用于:针对不同的线激光图像,以同一初始深度图像为基准,对各个线激光图像进行融合,得到所述待测对象的目标深度图像;或所述深度相机具体用于:采集所述待测对象的多帧初始深度图像;所述处理器具体用于:对所采集的多帧初始深度图像进行融合,得到融合后深度图像;针对每一线激光图像,确定该线激光图像在所述融合后深度图像中的匹配区域;按照不同线激光图像对应的匹配区域在所述融合后深度图像中的分布位置,对不同线激光图像进行融合,得到所述待测对象的目标深度图像。
- 根据权利要求1所述的设备,其特征在于,在动态扫描场景下,所述深度相机具体用于:在动态扫描过程中,采集所述待测对象的多帧初始深度图像,其中,各帧初始深度图像的采集时刻与各帧线激光图像的采集时刻同步;所述处理器具体用于:针对每一线激光图像,确定该线激光图像在同步采集的初始深度图像中的匹配区域;按照不同线激光图像对应的匹配区域在不同初始深度图像中的分布位置,对不同线激光图像进行融合,得到所述待测对象的目标深度图像。
- 根据权利要求4所述的设备,其特征在于,所述处理器具体用于:针对每一线激光图像,确定该线激光图像在同步采集的初始深度图像中的匹配区域;针对不同的初始深度图像,获得不同的初始深度图像之间的差异,并利用不同的初始深度图像之间的差异,计算所述深度相机的位姿变化信息,利用所计算得到的位姿变化信息,对不同线激光图像在不同初始深度图像中对应的匹配区域进行位置修正;按照不同线激光图像对应的位置修正后的匹配区域在不同初始深度图像中的分布位 置,对不同线激光图像进行融合,得到所述待测对象的目标深度图像。
- 根据权利要求1-5中任一项所述的设备,其特征在于,所述深度相机包括:飞行时间TOF光源、TOF相机,其中,所述TOF光源用于:向所述待测对象发射TOF光线;所述TOF相机用于:根据所述TOF光线的飞行时长,获得所述待测对象的初始深度图像,其中,所述飞行时长为:所述TOF光源发射TOF光线的发射时刻至所述TOF相机接收到所述待测对象反射的TOF光线的接收时刻之间的时长。
- 根据权利要求1-5中任一项所述的设备,其特征在于,所述激光相机为双目相机;和/或所述激光光源为多线激光光源或单线激光光源。
- 根据权利要求1-5中任一项所述的设备,其特征在于,所述扫描转镜包括反光镜、运动机构,所述运动机构用于带动所述反光镜运动。
- 一种数据采集方法,其特征在于,所述方法应用于数据采集设备中的处理器,所述数据采集设备还包括:深度相机、激光光源、扫描转镜、激光相机;所述方法包括:接收所述深度相机获得的待测对象的初始深度图像;接收所述激光相机采集的所述待测对象的线激光图像,其中,所述线激光图像是:所述激光相机在所述扫描转镜以扫描的方式向所述待测对象反射所述激光光源向所述扫描转镜发射的激光光线的过程中采集的;以所述初始深度图为基准,对不同线激光图像进行融合,得到所述待测对象的目标深度图像。
- 根据权利要求9所述的方法,其特征在于,所述以所述初始深度图为基准,对不同线激光图像进行融合,得到所述待测对象的目标深度图像,包括:针对每一线激光图像,确定该线激光图像在所述初始深度图像中的匹配区域;按照不同线激光图像对应的匹配区域在所述初始深度图像中的分布位置,对不同线激光图像进行融合,得到所述待测对象的目标深度图像。
- 根据权利要求9所述的方法,其特征在于,在静态扫描场景下,所述以所述初始深度图为基准,对不同线激光图像进行融合,得到所述待测对象的目标深度图像,包括:针对不同的线激光图像,以同一初始深度图像为基准,对各个线激光图像进行融合,得到所述待测对象的目标深度图像;或对所接收的多帧初始深度图像进行融合,得到融合后深度图像;针对每一线激光图像,确定该线激光图像在所述融合后深度图像中的匹配区域;按照不同线激光图像对应的匹配区域在所述融合后深度图像中的分布位置,对不同线激光图像进行融合,得到所述待测对象的目标深度图像。
- 根据权利要求9所述的方法,其特征在于,在动态扫描场景下,所述以所述初始深度图为基准,对不同线激光图像进行融合,得到所述待测对象的目标深度图像,包括:针对每一线激光图像,确定该线激光图像在同步采集的初始深度图像中的匹配区域;按照不同线激光图像对应的匹配区域在不同初始深度图像中的分布位置,对不同线激光图像进行融合,得到所述待测对象的目标深度图像。
- 根据权利要求12所述的方法,其特征在于,所述按照不同线激光图像对应的匹配区域在不同初始深度图像中的分布位置,对不同线激光图像进行融合,得到所述待测对象的目标深度图像,包括:针对不同的初始深度图像,获得不同的初始深度图像之间的差异,并利用不同的初始深度图像之间的差异,计算所述深度相机的位姿变化信息,利用所计算得到的位姿变化信息,对不同线激光图像在不同初始深度图像中对应的匹配区域进行位置修正;按照不同线激光图像对应的位置修正后的匹配区域在不同初始深度图像中的分布位置,对不同线激光图像进行融合,得到所述待测对象的目标深度图像。
- 一种数据采集装置,其特征在于,所述装置设置于数据采集设备中的处理器,所述数据采集设备还包括:深度相机、激光光源、扫描转镜、激光相机;所述装置包括:第一图像接收模块,用于接收所述深度相机获得的待测对象的初始深度图像;第二图像接收模块,用于接收所述激光相机采集的所述待测对象的线激光图像,其中,所述线激光图像是:所述激光相机在所述扫描转镜以扫描的方式向所述待测对象反射所述激光光源向所述扫描转镜发射的激光光线的过程中采集的;目标深度图确定模块,用于以所述初始深度图为基准,对不同线激光图像进行融合,得到所述待测对象的目标深度图像。
- 根据权利要求14所述的装置,其特征在于,所述目标深度图确定模块,具体用于:针对每一线激光图像,确定该线激光图像在所述初始深度图像中的匹配区域;按照不同线激光图像对应的匹配区域在所述初始深度图像中的分布位置,对不同线激光图像进行融合,得到所述待测对象的目标深度图像;或,在静态扫描场景下,所述目标深度图确定模块,具体用于:针对不同的线激光图像,以同一初始深度图像为基准,对各个线激光图像进行融合,得到所述待测对象的目标深度图像;或对所接收的多帧初始深度图像进行融合,得到融合后深度图像;针对每一线激光图像,确定该线激光图像在所述融合后深度图像中的匹配区域;按照不同线激光图像对应的匹配区域在所述融合后深度图像中的分布位置,对不同线激光图像进行融合,得到所述待测对象的目标深度图像;或,在动态扫描场景下,所述目标深度图确定模块,包括:区域确定子模块,用于针对每一线激光图像,确定该线激光图像在同步采集的初始深度图像中的匹配区域;目标深度图确定子模块,用于按照不同线激光图像对应的匹配区域在不同初始深度图像中的分布位置,对不同线激光图像进行融合,得到所述待测对象的目标深度图像;或,所述目标深度图确定子模块,具体用于:针对不同的初始深度图像,获得不同的初始深度图像之间的差异,并利用不同的初始深度图像之间的差异,计算所述深度相机的位姿变化信息,利用所计算得到的位姿变化信息,对不同线激光图像在不同初始深度图像中对应的匹配区域进行位置修正;按照不同线激光图像对应的位置修正后的匹配区域在不同初始深度图像中的分布位置,对不同线激光图像进行融合,得到所述待测对象的目标深度图像。
- 一种计算机可读存储介质,其特征在于,所述计算机可读存储介质内存储有计算机程序,所述计算机程序被处理器执行时实现权利要求9-13任一所述的方法步骤。
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| CN109889809A (zh) * | 2019-04-12 | 2019-06-14 | 深圳市光微科技有限公司 | 深度相机模组、深度相机、深度图获取方法以及深度相机模组形成方法 |
| CN112766328B (zh) * | 2020-01-05 | 2022-08-12 | 北京航空航天大学 | 融合激光雷达、双目相机和ToF深度相机数据的智能机器人深度图像构建方法 |
| CN111854642B (zh) * | 2020-07-23 | 2021-08-10 | 浙江汉振智能技术有限公司 | 基于随机点阵的多线激光三维成像方法及系统 |
| CN114898038B (zh) * | 2022-04-28 | 2025-12-23 | 杭州海康机器人股份有限公司 | 一种图像重建方法、装置及设备 |
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| WO2022017366A1 (zh) * | 2020-07-23 | 2022-01-27 | 华为技术有限公司 | 一种深度成像方法及深度成像系统 |
| CN114998499A (zh) * | 2022-06-08 | 2022-09-02 | 深圳大学 | 一种基于线激光振镜扫描的双目三维重建方法及系统 |
| CN115588037A (zh) * | 2022-09-27 | 2023-01-10 | 杭州海康机器人股份有限公司 | 一种数据采集设备、方法、装置及存储介质 |
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| JP2025532873A (ja) | 2025-10-03 |
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