GB2526047B - Method and apparatus for improved signal processing for high dynamic range - Google Patents

Method and apparatus for improved signal processing for high dynamic range Download PDF

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Publication number
GB2526047B
GB2526047B GB1403448.2A GB201403448A GB2526047B GB 2526047 B GB2526047 B GB 2526047B GB 201403448 A GB201403448 A GB 201403448A GB 2526047 B GB2526047 B GB 2526047B
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GB
United Kingdom
Prior art keywords
signal processing
dynamic range
high dynamic
improved signal
improved
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.)
Active
Application number
GB1403448.2A
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GB201403448D0 (en
GB2526047A (en
Inventor
Borer Tim
Cotton Andrew
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.)
British Broadcasting Corp
Original Assignee
British Broadcasting 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 British Broadcasting Corp filed Critical British Broadcasting Corp
Priority to GB1403448.2A priority Critical patent/GB2526047B/en
Publication of GB201403448D0 publication Critical patent/GB201403448D0/en
Priority to PCT/GB2015/050334 priority patent/WO2015128603A1/en
Publication of GB2526047A publication Critical patent/GB2526047A/en
Application granted granted Critical
Publication of GB2526047B publication Critical patent/GB2526047B/en
Active legal-status Critical Current
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/50—Control of the SSIS exposure
    • H04N25/57—Control of the dynamic range
    • H04N25/571—Control of the dynamic range involving a non-linear response
    • H04N25/573—Control of the dynamic range involving a non-linear response the logarithmic type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/76—Circuitry for compensating brightness variation in the scene by influencing the image signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/50—Control of the SSIS exposure
    • H04N25/57—Control of the dynamic range
    • H04N25/571—Control of the dynamic range involving a non-linear response
    • H04N25/575—Control of the dynamic range involving a non-linear response with a response composed of multiple slopes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/20—Circuitry for controlling amplitude response
    • H04N5/202—Gamma control
GB1403448.2A 2014-02-27 2014-02-27 Method and apparatus for improved signal processing for high dynamic range Active GB2526047B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1403448.2A GB2526047B (en) 2014-02-27 2014-02-27 Method and apparatus for improved signal processing for high dynamic range
PCT/GB2015/050334 WO2015128603A1 (en) 2014-02-27 2015-02-06 Method and apparatus for signal processing for high dynamic range video

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1403448.2A GB2526047B (en) 2014-02-27 2014-02-27 Method and apparatus for improved signal processing for high dynamic range

Publications (3)

Publication Number Publication Date
GB201403448D0 GB201403448D0 (en) 2014-04-16
GB2526047A GB2526047A (en) 2015-11-18
GB2526047B true GB2526047B (en) 2021-04-07

Family

ID=50490472

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1403448.2A Active GB2526047B (en) 2014-02-27 2014-02-27 Method and apparatus for improved signal processing for high dynamic range

Country Status (2)

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GB (1) GB2526047B (en)
WO (1) WO2015128603A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110489073B (en) * 2014-06-10 2023-09-01 松下知识产权经营株式会社 Conversion method and conversion device
EP3364654B1 (en) 2015-12-15 2021-03-03 Huawei Technologies Co., Ltd. High dynamic range image processing method and apparatus
EP3367657B1 (en) 2015-12-23 2021-06-02 Huawei Technologies Co., Ltd. Image signal conversion method and apparatus, and terminal device
US10257393B2 (en) 2016-02-12 2019-04-09 Contrast, Inc. Devices and methods for high dynamic range video
US10264196B2 (en) 2016-02-12 2019-04-16 Contrast, Inc. Systems and methods for HDR video capture with a mobile device
JP7081835B2 (en) 2016-08-09 2022-06-07 コントラスト， インコーポレイテッド Real-time HDR video for vehicle control
US10148871B2 (en) 2016-12-07 2018-12-04 Microsoft Technology Licensing, Llc Advanced raw conversion to produce high dynamic range, wide color gamut output
US11158032B2 (en) 2017-03-20 2021-10-26 Dolby Laboratories Licensing Corporation Perceptually preserving scene-referred contrasts and chromaticities
WO2019014057A1 (en) 2017-07-10 2019-01-17 Contrast, Inc. Stereoscopic camera
US10917583B2 (en) * 2018-04-27 2021-02-09 Apple Inc. Standard and high dynamic range display systems and methods for high dynamic range displays
US10951888B2 (en) 2018-06-04 2021-03-16 Contrast, Inc. Compressed high dynamic range video
KR102369148B1 (en) 2018-06-18 2022-03-02 돌비 레버러토리즈 라이쎈싱 코오포레이션 Image capture method and system
CN111510698A (en) * 2020-04-23 2020-08-07 惠州Tcl移动通信有限公司 Image processing method, device, storage medium and mobile terminal
CN111866414B (en) * 2020-07-15 2021-08-20 大连理工大学 High-dynamic image sensor pixel structure and time sequence control method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040196394A1 (en) * 2003-04-04 2004-10-07 Fumio Nakajima Gamma correction device in image capturing apparatus
US8279308B1 (en) * 2009-07-30 2012-10-02 Adobe Systems Incorporated Optimized log encoding of image data
WO2013039730A2 (en) * 2011-09-15 2013-03-21 Dolby Laboratories Licensing Corporation Method and system for backward compatible, extended dynamic range encoding of video

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040196394A1 (en) * 2003-04-04 2004-10-07 Fumio Nakajima Gamma correction device in image capturing apparatus
US8279308B1 (en) * 2009-07-30 2012-10-02 Adobe Systems Incorporated Optimized log encoding of image data
WO2013039730A2 (en) * 2011-09-15 2013-03-21 Dolby Laboratories Licensing Corporation Method and system for backward compatible, extended dynamic range encoding of video

Also Published As

Publication number Publication date
WO2015128603A1 (en) 2015-09-03
GB201403448D0 (en) 2014-04-16
GB2526047A (en) 2015-11-18

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