WO2017004886A1 - Procédé et terminal de capture d'image - Google Patents

Procédé et terminal de capture d'image Download PDF

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Publication number
WO2017004886A1
WO2017004886A1 PCT/CN2015/089185 CN2015089185W WO2017004886A1 WO 2017004886 A1 WO2017004886 A1 WO 2017004886A1 CN 2015089185 W CN2015089185 W CN 2015089185W WO 2017004886 A1 WO2017004886 A1 WO 2017004886A1
Authority
WO
WIPO (PCT)
Prior art keywords
value
flash
current value
terminal
driving current
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2015/089185
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English (en)
Chinese (zh)
Inventor
马彦青
曲廷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZTE Corp
Original Assignee
ZTE Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZTE Corp filed Critical ZTE Corp
Publication of WO2017004886A1 publication Critical patent/WO2017004886A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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

Definitions

  • the present invention relates to the field of terminal applications, and in particular, to a photographing method and a terminal.
  • the embodiment of the present invention provides a photographing method and a terminal.
  • the embodiment of the present invention provides a photographing method, including: when a flash pre-flashes, the terminal collects a current illuminance value of an environment in which the flash is located; and the terminal determines an actual photo of the flash according to the current illuminance value. Driving a current value; the terminal drives the flash with the actual driving current value and takes a picture.
  • the terminal determines the actual driving current value of the flash according to the current illuminance value, including: the terminal gradually adjusting the driving current value of the flash until the adjusted driving current value is The current illuminance value matches; the terminal will adjust the The drive current value is determined as the actual drive current value.
  • the terminal determines the actual driving current value of the flash according to the current illuminance value, including: the terminal determines a preset image brightness value according to the current illuminance value; and the terminal gradually adjusts a driving current value of the flash lamp, and after each adjusting the driving current value, driving the flash and taking a picture with the adjusted driving current value; the terminal analyzing the obtained image to determine the brightness of the image a value; the terminal determines the adjusted driving current value as the actual driving current value when the brightness value of the image is consistent with the preset image brightness value.
  • the terminal gradually adjusts the driving current value of the flash, including: the terminal gradually adjusting the driving current value of the flash in a manner of sequentially increasing a fixed value.
  • the determining, by the terminal, the actual driving current value of the flash according to the current illuminance value comprising: determining, by the terminal, the current illuminance value according to a correspondence between a preset illuminance value and a driving current. a drive current value; the terminal determines the corresponding drive current value as the actual drive current value.
  • an embodiment of the present invention provides a terminal, including: a light sensor, a controller, a flash, a driving circuit, and a camera; wherein the flash is configured to fill light when the camera is photographed; the driving circuit The light sensor is configured to collect a current illuminance value of an environment in which the terminal to which the terminal belongs when the flash is pre-flashed; the controller is configured to be configured according to the current a illuminance value, determining an actual driving current value of the flash; controlling the driving circuit to drive the flash with the actual driving current value, and controlling the camera to take a picture.
  • the controller is specifically configured to gradually adjust the driving current value of the flash until the adjusted driving current value matches the current illuminance value; determining the adjusted driving current value as the The actual drive current value is described.
  • the controller is specifically configured to be determined according to the current illuminance value. Determining a preset image brightness value; gradually adjusting a driving current value of the flash lamp, and after each adjusting the driving current value, controlling the driving circuit to drive the flash lamp with an adjusted driving current value and controlling the Taking a picture of the camera; analyzing the obtained image to determine a brightness value of the image; and determining, when the brightness value of the image is consistent with the brightness value of the preset image, determining the adjusted driving current value as the actual Drive current value.
  • the controller is specifically configured to gradually adjust the driving current value of the flash in a manner of sequentially incrementing a fixed value.
  • the controller is configured to determine a driving current value corresponding to the current illuminance value according to a preset relationship between the illuminance value and the driving current; and determine the corresponding driving current value as the Actual drive current value.
  • the embodiment of the invention provides a photographing method and a terminal.
  • the terminal collects the illuminance value of the current environment in real time, and then determines the actual driving current of the flash according to the illuminance value, and then The actual drive current drives the flash to fill the light. That is to say, the actual driving current of the flash is adapted to the illumination of the environment in which the terminal is currently located, and it is not necessary to always drive the flash with a large current value.
  • the terminal performs photographing, power consumption can be reduced, and the battery can be improved.
  • the endurance capability further, since the actual driving current of the flash is adapted to the illumination of the environment in which the terminal is currently located, the photograph taken can avoid overexposure or underexposure, adapt to more shooting scenes, and provide Good user experience.
  • FIG. 1 is a schematic flowchart diagram of a photographing method according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
  • the embodiment of the invention provides a photographing method, which can be applied to terminals such as smart phones, tablet computers, portable digital cameras, and SLR cameras. At least one camera is disposed on the terminals, and a flash or flash array is disposed at a position beside the camera, and a driving circuit for driving the flash or the flash array and a light sensor are further disposed on the terminal.
  • the light sensor can be set in the vicinity of the front camera and the rear camera, so that the illuminance value of the environment in which the terminal is located can be more accurately collected.
  • the above photographing method includes:
  • the terminal collects a current illuminance value of an environment in which the flash is located when the flash performs pre-flashing;
  • the flash performs pre-flashing to reduce the red eye of the photo.
  • the terminal collects the illuminance value of the environment in which the environment is located by using the light sensor.
  • S102 The terminal determines an actual driving current value of the flash according to the current illuminance value
  • S102 may be, without being limited to, the following three cases.
  • the terminal determines the actual driving current value corresponding to the current illuminance value according to the correspondence between the preset illuminance value and the driving current.
  • the manufacturer or the software developer obtains the correspondence between the illuminance value and the driving current through multiple experiments, and presets it in the terminal. Then, when the user uses the terminal to take a photo, Through the preset correspondence, the actual driving current of the flash corresponding to the current illuminance is determined.
  • the terminal gradually adjusts the driving current value of the flash until the adjusted driving current value matches the current illuminance value; and determines the adjusted driving current value as the actual driving current value.
  • the terminal can gradually adjust the flash.
  • the driving current for example, the driving current starts from the initial value, and gradually adjusts the driving current value of the flash until the current illuminance value is matched, which may be when the flash is driven by the currently adjusted driving current value.
  • the flash fills the environment to achieve the best fill light effect, then the adjusted drive current value at this time is determined as the actual drive current value.
  • the terminal determines a preset image brightness value according to the current illuminance value; gradually adjusts the driving current value of the flash, and after each adjustment of the driving current value, drives the flash and takes a picture with the adjusted driving current value;
  • the obtained image is analyzed to determine the brightness value of the image; when the brightness value of the image is consistent with the brightness value of the preset image, the adjusted driving current value is determined as the actual driving current value.
  • the manufacturer or software developer presets the correspondence between the illuminance value and the image brightness value in the terminal.
  • the image brightness value here refers to the best exposure effect under different illuminance values.
  • the brightness value of the image is obtained after obtaining the current illumination value in S101, the terminal determines the corresponding preset image brightness value according to the corresponding relationship between the preset illumination value and the image brightness value, and then gradually adjusts the flash drive current value, which may be sequentially incremented.
  • the fixed value method gradually adjusts the driving current value of the flash, and after each adjustment of the driving current value, the flash is driven and photographed with the adjusted driving current value.
  • the terminal obtains an image, and then, the terminal Detecting a brightness value of the image, if the brightness value is consistent with the preset image brightness value, confirming the adjusted driving current value at this time as an actual driving current value of the flash, if the brightness value and the preset image brightness If the values do not match, continue to increase the drive current value and take a picture until the brightness value of the image obtained by the photograph is consistent with the preset image brightness value.
  • the terminal may also adopt other methods to obtain the actual driving current of the flash according to the current illuminance, which is not specifically limited in the present invention.
  • the terminal drives the flash with the actual driving current value and takes a picture.
  • the terminal determines the actual power of the flash corresponding to the current illumination value through S102. After the stream drive value, the flash is officially driven with the actual current drive value, the flash is lit, the shot area is filled, and the photograph is taken.
  • the terminal collects the illuminance value of the current environment in real time, and then determines the actual driving current of the flash according to the illuminance value, and then drives the flash to fill the light with the actual driving current.
  • the actual driving current of the flash is adapted to the illumination of the environment in which the terminal is currently located, and it is not necessary to always drive the flash with a large current value.
  • the terminal performs photographing, power consumption can be reduced, and the battery can be improved.
  • the endurance capability since the actual driving current of the flash is adapted to the illumination of the environment in which the terminal is currently located, the photograph taken can avoid overexposure or underexposure, adapt to more shooting scenes, and provide Good user experience.
  • the embodiment of the invention provides a terminal, which is consistent with the terminal described in one or more embodiments.
  • the terminal includes: a light sensor 21, a controller 22, a flash 23, a driving circuit 24, and a camera 25; wherein the flash 23 is configured to fill light when the camera 25 takes a picture; the driving circuit 24 is configured In order to drive the flash 23, the light sensor 21 is configured to collect the current illuminance value of the environment in which the terminal to which the terminal belongs when the flash 23 is pre-flashed; the controller 22 is configured to determine the actual driving current of the flash 23 according to the current illuminance value.
  • the control drive circuit 24 drives the flash 23 with the actual drive current value and controls the camera 25 to take a picture.
  • the controller 22 is specifically configured to gradually adjust the driving current value of the flash 23 until the adjusted driving current value matches the current illuminance value; and determine the adjusted driving current value as the actual driving current value.
  • the controller 22 is specifically configured to determine a preset image brightness value according to the current illuminance value; gradually adjust the driving current value of the flash 23, and adjust the driving current every time.
  • the control driving circuit 24 drives the flash 23 with the adjusted driving current value and controls the camera 25 to take a picture; analyzes the obtained image to determine the brightness value of the image; when the brightness value of the image matches the preset image brightness value
  • the adjusted drive current value is determined as the actual drive current value.
  • the controller 22 is specifically configured to gradually adjust the driving current value of the flash 23 in a manner of sequentially incrementing the fixed value.
  • the controller 22 is specifically configured to determine a driving current value corresponding to the current illuminance value according to a preset relationship between the illuminance value and the driving current; and determine a corresponding driving current value as the actual driving current value.
  • the controller 22 may be a CPU, an ARM, or a DSP of the terminal, and the present invention is not specifically limited.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention can take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
  • These computer program instructions can also be stored in a bootable computer or other programmable data processing
  • the apparatus is readable in a computer readable memory in a particular manner such that instructions stored in the computer readable memory produce an article of manufacture comprising instruction means implemented in one or more flows and/or block diagrams of the flowchart The function specified in the box or in multiple boxes.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Studio Devices (AREA)

Abstract

Un mode de réalisation de la présente invention concerne un procédé de capture d'image. Le procédé comprend les étapes suivantes : un terminal acquiert une valeur d'éclairement électrique de l'environnement dans lequel se trouve le terminal lorsqu'un flash exécute un pré-flash ; le terminal détermine, d'après la valeur d'éclairement électrique, une valeur d'un courant d'entraînement réel du flash ; et le terminal entraîne le flash avec la valeur du courant d'entraînement réel. Un mode de réalisation de la présente invention concerne en outre un terminal.
PCT/CN2015/089185 2015-07-08 2015-09-08 Procédé et terminal de capture d'image Ceased WO2017004886A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510397102.6A CN106331512A (zh) 2015-07-08 2015-07-08 一种拍照方法及终端
CN201510397102.6 2015-07-08

Publications (1)

Publication Number Publication Date
WO2017004886A1 true WO2017004886A1 (fr) 2017-01-12

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PCT/CN2015/089185 Ceased WO2017004886A1 (fr) 2015-07-08 2015-09-08 Procédé et terminal de capture d'image

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CN (1) CN106331512A (fr)
WO (1) WO2017004886A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11224900B2 (en) 2017-01-17 2022-01-18 Equinor Energy As Gas compressor cleaning

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107137026A (zh) * 2017-06-26 2017-09-08 深圳普思英察科技有限公司 一种扫地机器人及其摄像头补光系统、方法
CN107333070B (zh) * 2017-07-12 2019-07-12 江苏集萃有机光电技术研究所有限公司 图像获取方法及诊断仪

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1658055A (zh) * 2004-02-17 2005-08-24 佳能株式会社 闪光装置的发光控制方法及图像摄取装置
CN101064792A (zh) * 2006-04-28 2007-10-31 三星Techwin株式会社 拍摄设备和方法
EP1858254A2 (fr) * 2006-05-16 2007-11-21 Ricoh Company, Ltd. Appareil de capture d'images avec commande flash améliorée
CN101178532A (zh) * 2006-11-09 2008-05-14 佳能株式会社 图像捕获设备及其控制方法
CN102830573A (zh) * 2012-09-10 2012-12-19 华为终端有限公司 一种闪光控制方法及装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1658055A (zh) * 2004-02-17 2005-08-24 佳能株式会社 闪光装置的发光控制方法及图像摄取装置
CN101064792A (zh) * 2006-04-28 2007-10-31 三星Techwin株式会社 拍摄设备和方法
EP1858254A2 (fr) * 2006-05-16 2007-11-21 Ricoh Company, Ltd. Appareil de capture d'images avec commande flash améliorée
CN101178532A (zh) * 2006-11-09 2008-05-14 佳能株式会社 图像捕获设备及其控制方法
CN102830573A (zh) * 2012-09-10 2012-12-19 华为终端有限公司 一种闪光控制方法及装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11224900B2 (en) 2017-01-17 2022-01-18 Equinor Energy As Gas compressor cleaning
US11945006B2 (en) 2017-01-17 2024-04-02 Equinor Energy As Gas compressor cleaning
US12296364B2 (en) 2017-01-17 2025-05-13 Equinor Energy As Gas compressor cleaning

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Publication number Publication date
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