CN101803366B - 用于成像系统的曝光控制 - Google Patents

用于成像系统的曝光控制 Download PDF

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Publication number
CN101803366B
CN101803366B CN200880100606.5A CN200880100606A CN101803366B CN 101803366 B CN101803366 B CN 101803366B CN 200880100606 A CN200880100606 A CN 200880100606A CN 101803366 B CN101803366 B CN 101803366B
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China
Prior art keywords
image
histogram
peak
ldr
exposure
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Expired - Fee Related
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CN200880100606.5A
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English (en)
Chinese (zh)
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CN101803366A (zh
Inventor
杨韵恩
郑苍隆
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Candela Microsystems S Pte Ltd
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Candela Microsystems S Pte Ltd
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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
    • G06T5/90—Dynamic range modification of images or parts thereof
    • G06T5/92—Dynamic range modification of images or parts thereof based on global image properties
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/40—Image enhancement or restoration using histogram techniques
    • 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
    • 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
    • H04N23/71—Circuitry for evaluating the brightness variation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/73—Circuitry for compensating brightness variation in the scene by influencing the exposure time
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/741—Circuitry for compensating brightness variation in the scene by increasing the dynamic range of the image compared to the dynamic range of the electronic image sensors
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Studio Devices (AREA)
  • Exposure Control For Cameras (AREA)
  • Image Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
CN200880100606.5A 2007-07-25 2008-07-16 用于成像系统的曝光控制 Expired - Fee Related CN101803366B (zh)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US96202807P 2007-07-25 2007-07-25
US60/962,028 2007-07-25
US12/218,742 2008-07-16
PCT/IB2008/003793 WO2009050594A2 (en) 2007-07-25 2008-07-16 Exposure control for an imagning system
US12/218,742 US8264594B2 (en) 2007-07-25 2008-07-16 Exposure control for an imaging system

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CN201410751738.1A Division CN104618659A (zh) 2007-07-25 2008-07-16 用于成像系统的曝光控制

Publications (2)

Publication Number Publication Date
CN101803366A CN101803366A (zh) 2010-08-11
CN101803366B true CN101803366B (zh) 2015-01-14

Family

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Family Applications (2)

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CN200880100606.5A Expired - Fee Related CN101803366B (zh) 2007-07-25 2008-07-16 用于成像系统的曝光控制
CN201410751738.1A Pending CN104618659A (zh) 2007-07-25 2008-07-16 用于成像系统的曝光控制

Family Applications After (1)

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CN201410751738.1A Pending CN104618659A (zh) 2007-07-25 2008-07-16 用于成像系统的曝光控制

Country Status (9)

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US (5) US8264594B2 (enExample)
JP (3) JP5189649B2 (enExample)
CN (2) CN101803366B (enExample)
BR (1) BRPI0814365A2 (enExample)
DE (1) DE112008001990B4 (enExample)
ES (1) ES2396318B1 (enExample)
GB (2) GB2464441B (enExample)
MX (1) MX2010000931A (enExample)
WO (1) WO2009050594A2 (enExample)

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CN103917988B (zh) * 2011-09-12 2017-08-15 谷歌公司 用于增强内容的系统
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CN106534708B (zh) * 2015-09-15 2020-02-18 瑞昱半导体股份有限公司 宽动态范围影像方法
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WO2009050594A3 (en) 2009-11-12
GB201003139D0 (en) 2010-04-14
US20120218434A1 (en) 2012-08-30
US20130223739A1 (en) 2013-08-29
MX2010000931A (es) 2010-04-21
CN104618659A (zh) 2015-05-13
GB201206086D0 (en) 2012-05-16
JP5590476B2 (ja) 2014-09-17
HK1175340A1 (en) 2013-06-28
JP2013138449A (ja) 2013-07-11
US20090027545A1 (en) 2009-01-29
ES2396318B1 (es) 2013-12-16
DE112008001990T5 (de) 2010-09-09
WO2009050594A2 (en) 2009-04-23
BRPI0814365A2 (pt) 2018-07-31
GB2488683A (en) 2012-09-05
DE112008001990B4 (de) 2015-05-13
JP5189649B2 (ja) 2013-04-24
CN101803366A (zh) 2010-08-11
US8334924B2 (en) 2012-12-18
ES2396318A1 (es) 2013-02-20
US20160028932A1 (en) 2016-01-28
HK1143015A1 (en) 2010-12-17
GB2488683B (en) 2012-10-10
JP2014233075A (ja) 2014-12-11
JP2011503915A (ja) 2011-01-27
GB2464441B (en) 2012-10-17
US8451371B2 (en) 2013-05-28
US8264594B2 (en) 2012-09-11
GB2464441A (en) 2010-04-21
US8792049B2 (en) 2014-07-29
US20120013789A1 (en) 2012-01-19

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