WO2019061542A1 - Procédé et dispositif de capture de vidéo, et support de stockage lisible par ordinateur - Google Patents

Procédé et dispositif de capture de vidéo, et support de stockage lisible par ordinateur Download PDF

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Publication number
WO2019061542A1
WO2019061542A1 PCT/CN2017/105162 CN2017105162W WO2019061542A1 WO 2019061542 A1 WO2019061542 A1 WO 2019061542A1 CN 2017105162 W CN2017105162 W CN 2017105162W WO 2019061542 A1 WO2019061542 A1 WO 2019061542A1
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WO
WIPO (PCT)
Prior art keywords
image
area
video
portrait
user
Prior art date
Application number
PCT/CN2017/105162
Other languages
English (en)
Chinese (zh)
Inventor
杨玉琳
Original Assignee
深圳传音通讯有限公司
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 深圳传音通讯有限公司 filed Critical 深圳传音通讯有限公司
Priority to PCT/CN2017/105162 priority Critical patent/WO2019061542A1/fr
Priority to CN201780097112.5A priority patent/CN111543047A/zh
Publication of WO2019061542A1 publication Critical patent/WO2019061542A1/fr

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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
    • H04N23/60—Control of cameras or camera modules

Definitions

  • the present invention relates to the field of image imaging, and more particularly to a video capture method, apparatus, and computer readable storage medium.
  • a main object of the present invention is to provide a video capture method, apparatus, and computer readable storage medium, which are directed to solving the problem of insufficient portrait exposure caused by the automatic portrait highlighting function when recording video.
  • the present invention provides a video capture method, the video capture method comprising the following steps:
  • Corresponding image exposure processing is performed on the image of the framing frame area according to a logical comparison relationship between the specified target image parameter value and the preset image parameter value.
  • the target image parameter value corresponding to the user facial image includes: a portrait area image brightness FV in the user's face image, an area picture brightness BV other than the user's face image, and an image area of the portrait area in the view frame area.
  • the preset image parameter value includes a portrait area target brightness FT in the user's face image, wherein the effective area of the portrait area target brightness FT is a ⁇ FT ⁇ b.
  • the step of performing a corresponding image exposure process on the image of the framing frame area according to the logical comparison relationship between the specified target image parameter value and the preset image parameter value comprises:
  • the image of the framing frame area is subjected to exposure compensation such that the portrait area picture brightness FV is equal to the value a.
  • the step of comparing the value of the FV with the value of the effective interval of the FT further includes:
  • the image of the framing frame area is subjected to exposure compensation such that the portrait area picture brightness FV is equal to the value b.
  • the step of comparing the value of the FV with the value of the effective interval of the FT further includes:
  • the image of the framing area is subjected to exposure compensation such that the portrait area picture brightness FV is equal to the FT.
  • the step of acquiring the target image parameter value corresponding to the user facial image comprises:
  • the target image parameter value of the portrait corresponding to the selected number in the image is acquired according to the number selected by the user.
  • the present invention further provides a video photographing apparatus, comprising: a camera, a memory, a processor, and being stored on the memory and operable on the processor Video capture device, where:
  • the camera is used for video shooting
  • the steps of the video capture method as described above are implemented when the video capture device is executed by the processor.
  • the present invention further provides a computer readable storage medium, wherein the computer readable storage medium stores a video capture program, and the video capture program is executed by a processor as described above. The steps of the video capture method described.
  • a video shooting method, device and computer readable storage medium provided by embodiments of the present invention
  • the framing area By performing face recognition on the image of the framing frame area when starting the video shooting, when the image of the user is recognized, the corresponding image parameter value is acquired; after the image parameter value is compared with the target image parameter value, the framing area is The target area image performs corresponding image brightening processing, thereby realizing automatic brightening of the image during the shooting of the video, improving the portrait brightness of the video, and optimizing the video quality.
  • FIG. 1 is a schematic structural diagram of a video capture apparatus according to an embodiment of the present invention.
  • FIG. 2 is a schematic flow chart of a first embodiment of a video capturing method according to the present invention
  • FIG. 3 is a schematic flow chart of a second embodiment of a video capturing method according to the present invention.
  • FIG. 4 is a schematic flow chart of a third embodiment of a video capturing method according to the present invention.
  • FIG. 5 is a schematic diagram of an example of a second embodiment of a video capture method according to the present invention.
  • the main solution of the embodiment of the present invention is: performing facial recognition on the image of the framing frame area at the beginning of the video shooting; and acquiring the target image parameter value corresponding to the user facial image when the user facial image is recognized; And a logical comparison relationship between the target image parameter value and the preset image parameter value, and performing corresponding image exposure processing on the image of the framing frame area.
  • the present invention provides a solution that enables automatic portrait highlighting during video shooting when the subject's skin color is deep.
  • FIG. 1 is a schematic structural diagram of a terminal of a video capturing apparatus according to an embodiment of the present invention.
  • the video capturing device of the embodiment of the present invention may be a mobile terminal device having a video capturing and displaying function, such as a smart phone, a digital camera, a video recorder, a tablet computer, a portable computer, or the like.
  • the video capture device can include a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, and a communication bus 1002.
  • the communication bus 1002 is used to implement connection communication between these components.
  • the user interface 1003 can include a display, an input unit such as a keyboard, and the optional user interface 1003 can also include a standard wired interface, a wireless interface.
  • the network interface 1004 can optionally include a standard wired interface, a wireless interface (such as a WI-FI interface).
  • the memory 1005 may be a high speed RAM memory or a stable memory (non-volatile) Memory), such as disk storage.
  • the memory 1005 can also optionally be a storage device independent of the aforementioned processor 1001.
  • the video capture device can include a camera, RF (Radio) Frequency, RF) circuits, sensors, audio circuits, WiFi modules, and more.
  • sensors such as light sensors, motion sensors, and other sensors.
  • the light sensor may include an ambient light sensor and a proximity sensor.
  • the video capturing device may also be configured with other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, and the like, and details are not described herein.
  • terminal structure shown in FIG. 1 does not constitute a limitation to the terminal, and may include more or less components than those illustrated, or a combination of certain components, or different component arrangements.
  • an operating system may be included in the memory 1005 as a computer storage medium.
  • a network communication module may be included in the memory 1005 as a computer storage medium.
  • a user interface module may be included in the memory 1005 as a computer storage medium.
  • a video capture program may be included in the memory 1005 as a computer storage medium.
  • the network interface 1004 is mainly used to connect to the background server and perform data communication with the background server;
  • the user interface 1003 is mainly used to connect the client (user end), and perform data communication with the client;
  • the processor 1001 can be used to call a video capture program stored in the memory 1005 and perform the following operations:
  • Corresponding image exposure processing is performed on the image of the framing frame area according to a logical comparison relationship between the specified target image parameter value and the preset image parameter value.
  • the image target parameter value may include a portrait area image brightness FV in the user's face image, an area picture brightness BV other than the user's face image, and an area ratio R of the image area in the image frame area of the view frame area;
  • the preset image parameter value includes a portrait area target brightness FT in the user's face image, wherein the effective area of the portrait area target brightness FT is a ⁇ FT ⁇ b.
  • processor 1001 can call the video capture program stored in the memory 1005, and also performs the following operations:
  • exposure compensation is performed on the target area image of the framing frame area such that the portrait area screen brightness FV is equal to the value a.
  • processor 1001 can call the video capture program stored in the memory 1005, and also performs the following operations:
  • exposure compensation is performed on the target area image of the framing frame area such that the portrait area picture brightness FV is equal to the value b.
  • processor 1001 can call the video capture program stored in the memory 1005, and also performs the following operations:
  • processor 1001 can call the video capture program stored in the memory 1005, and also performs the following operations:
  • the target image parameter value of the portrait corresponding to the selected number in the image is acquired according to the number selected by the user.
  • a first embodiment of the present invention provides a video capture method, where the video capture method includes:
  • Step S10 performing facial recognition on the image of the framing frame area when the video shooting is started
  • Step S20 when the user facial image is recognized, acquiring a target image parameter value corresponding to the user facial image;
  • a video camera having a video camera function such as a smart phone or a digital camera
  • face recognition is performed on the image of the framing frame area; and the function of face recognition is also selected at a certain time of shooting the video.
  • the facial recognition method may include, but is not limited to, a feature face recognition method, a reference template method, and a portrait rule method; in the embodiment of the present invention, an ISP is preferably used.
  • ISP is preferably used.
  • FD Fullier Descriptors, Fourier descriptors
  • the target image parameter value corresponding to the facial image is further obtained, which may specifically include: a portrait area image brightness FV in the user's face image, an area picture brightness BV other than the user's face image, and the portrait area is The area of the image area of the view frame area occupies a ratio R.
  • Step S30 performing corresponding image exposure processing on the image of the framing frame area according to a logical comparison relationship between the specified target image parameter value and the preset image parameter value.
  • the target image parameter value for performing the logical comparison is the portrait area screen brightness FV
  • the preset image parameter value includes the portrait area target brightness FT in the user face image, wherein the effective range of the portrait area target brightness FT is a ⁇ FT ⁇ b.
  • the framing area image may further include one or more portrait areas for performing image brightening processing when there are multiple portraits, and may also include area image images other than the user's facial image, for example, when the video shooting environment is used. When it is dark, similar exposure compensation processing is performed on the environment screen.
  • the logical comparison relationship of the image parameter values performs corresponding image exposure processing on the image of the framing frame area, thereby solving the problem of insufficient brightness of the captured image (especially the dark-skinned portrait), improving the video quality, and prompting the user experience.
  • a second embodiment of the present invention provides a video capturing method.
  • the logical comparison relationship between a specified target image parameter value and a preset image parameter value is performed.
  • the step of performing corresponding image exposure processing on the image of the framing frame area includes:
  • Step S31 comparing the value of the FV with the value of the effective interval of the FT;
  • Step S33 performing exposure compensation on the image of the framing frame area according to the FT, so that the portrait area picture brightness FV is equal to the value a.
  • Step S35 performing exposure compensation on the image of the framing frame area according to the FT, so that the portrait area screen brightness FV is equal to the value b.
  • Step S37 performing exposure compensation on the image of the framing frame area according to the FT, so that the portrait area screen brightness FV is equal to the FT.
  • the portrait of the currently captured video is darker, that is, FV ⁇ a.
  • the FT is taken as the lower limit value a of the original effective interval, and the framing is performed according to the FT.
  • the image of the frame area is subjected to exposure compensation such that the portrait area picture brightness FV is equal to the value a.
  • the portrait can be correspondingly brightened, and the contrast and display effect of the portrait image is enhanced.
  • the brightness of the portrait can be appropriately reduced by exposure compensation to coordinate the portrait with the environmental background.
  • the image of the framing frame area is subjected to exposure compensation processing, thereby increasing or decreasing the brightness of the portrait, so that the portrait in the video picture is more clear and clear, and the environment background is more clear. coordination.
  • a third embodiment of the present invention provides a video capturing method.
  • the target image parameter value corresponding to the user facial image is acquired.
  • the steps include:
  • Step S21 numbering each portrait corresponding to the recognized facial image of the user
  • Step S22 Acquire a target image parameter value of the portrait corresponding to the selected number in the image according to the number selected by the user.
  • each portrait corresponding to the recognized user's facial image may be numbered according to the face recognition technology, and the user may select one or more portraits and further acquire the target image parameter values of the corresponding portrait. It should be noted that when a plurality of portraits are selected, the target image parameter value finally used for the image exposure processing may be a weighted average of the target image parameter values of the respective selected portraits.
  • an embodiment of the present invention further provides a computer readable storage medium, where the video photographic storage program stores a video capture program, and when the video capture program is executed by the processor, the following operations are implemented:
  • Corresponding image exposure processing is performed on the image of the framing frame area according to a logical comparison relationship between the specified target image parameter value and the preset image parameter value.
  • the target image parameter value corresponding to the user facial image includes: a portrait area image brightness FV in the user's face image, an area picture brightness BV other than the user's face image, and an image area of the portrait area in the view frame area.
  • the preset image parameter value includes a portrait area target brightness FT in the user's face image, wherein the effective area of the portrait area target brightness FT is a ⁇ FT ⁇ b.
  • the image of the framing frame area is subjected to exposure compensation such that the portrait area picture brightness FV is equal to the value a.
  • the image of the framing frame area is subjected to exposure compensation such that the portrait area picture brightness FV is equal to the value b.
  • the image of the framing area is subjected to exposure compensation such that the portrait area picture brightness FV is equal to the FT.
  • the target image parameter value of the portrait corresponding to the selected number in the image is acquired according to the number selected by the user.

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

Abstract

L'invention concerne un procédé de capture de vidéo comprenant les étapes consistant à : effectuer une reconnaissance faciale sur une image dans une zone de cadre de visualisation lorsqu'une capture de vidéo est activée ; acquérir des valeurs de paramètre d'image cible correspondant à une image faciale d'utilisateur lorsque l'image faciale d'utilisateur est reconnue ; et effectuer un traitement d'exposition d'image correspondant sur l'image dans la zone de cadre de visualisation selon une relation de comparaison logique entre des valeurs de paramètre d'image cible désignées et des valeurs de paramètre d'image prédéfinies. L'invention concerne également un dispositif de capture de vidéo et un support de stockage lisible par ordinateur. La présente invention réalise un éclaircissement automatique d'image au cours d'un processus de capture d'une vidéo, ce qui permet d'améliorer la luminosité de l'image de la personne et d'optimiser la qualité de la vidéo.
PCT/CN2017/105162 2017-09-30 2017-09-30 Procédé et dispositif de capture de vidéo, et support de stockage lisible par ordinateur WO2019061542A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2017/105162 WO2019061542A1 (fr) 2017-09-30 2017-09-30 Procédé et dispositif de capture de vidéo, et support de stockage lisible par ordinateur
CN201780097112.5A CN111543047A (zh) 2017-09-30 2017-09-30 视频拍摄方法、装置及计算机可读存储介质

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Application Number Priority Date Filing Date Title
PCT/CN2017/105162 WO2019061542A1 (fr) 2017-09-30 2017-09-30 Procédé et dispositif de capture de vidéo, et support de stockage lisible par ordinateur

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WO2019061542A1 true WO2019061542A1 (fr) 2019-04-04

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CN112511743B (zh) * 2020-11-25 2022-07-22 南京维沃软件技术有限公司 视频拍摄方法和装置
CN113766260A (zh) * 2021-08-24 2021-12-07 武汉瓯越网视有限公司 人脸自动曝光优化方法、存储介质、电子设备及系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103458219A (zh) * 2013-09-02 2013-12-18 小米科技有限责任公司 一种视频通话面部调整方法、装置及终端设备
CN104580901A (zh) * 2014-12-25 2015-04-29 魅族科技（中国）有限公司 确定拍摄参数的方法和终端
CN105227823A (zh) * 2014-06-03 2016-01-06 维科技术有限公司 移动终端的拍摄方法及其装置
US20160037046A1 (en) * 2014-07-31 2016-02-04 Canon Kabushiki Kaisha Image capturing apparatus and control method therefor
CN106210523A (zh) * 2016-07-22 2016-12-07 浙江宇视科技有限公司 一种曝光调整方法及装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9082004B2 (en) * 2011-12-15 2015-07-14 The Nielsen Company (Us), Llc. Methods and apparatus to capture images
US9131150B1 (en) * 2014-06-06 2015-09-08 Amazon Technologies, Inc. Automatic exposure control and illumination for head tracking
CN105049726B (zh) * 2015-08-05 2018-09-04 广东欧珀移动通信有限公司 一种移动终端拍照方法及移动终端
CN105516613A (zh) * 2015-12-07 2016-04-20 凌云光技术集团有限责任公司 基于人脸识别的智能曝光方法及系统
CN106231178B (zh) * 2016-07-22 2019-07-26 维沃移动通信有限公司 一种自拍方法和移动终端

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103458219A (zh) * 2013-09-02 2013-12-18 小米科技有限责任公司 一种视频通话面部调整方法、装置及终端设备
CN105227823A (zh) * 2014-06-03 2016-01-06 维科技术有限公司 移动终端的拍摄方法及其装置
US20160037046A1 (en) * 2014-07-31 2016-02-04 Canon Kabushiki Kaisha Image capturing apparatus and control method therefor
CN104580901A (zh) * 2014-12-25 2015-04-29 魅族科技（中国）有限公司 确定拍摄参数的方法和终端
CN106210523A (zh) * 2016-07-22 2016-12-07 浙江宇视科技有限公司 一种曝光调整方法及装置

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