TW373412B - Video camera apparatus capable of simply extracting brightness information used in auto-iris control - Google Patents

Video camera apparatus capable of simply extracting brightness information used in auto-iris control

Info

Publication number
TW373412B
TW373412B TW087102415A TW87102415A TW373412B TW 373412 B TW373412 B TW 373412B TW 087102415 A TW087102415 A TW 087102415A TW 87102415 A TW87102415 A TW 87102415A TW 373412 B TW373412 B TW 373412B
Authority
TW
Taiwan
Prior art keywords
iris control
video camera
pseudo
camera apparatus
control operation
Prior art date
Application number
TW087102415A
Other languages
English (en)
Inventor
Atsushi Kitamura
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of TW373412B publication Critical patent/TW373412B/zh

Links

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
    • H04N23/67—Focus control based on electronic image sensor signals
    • 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
    • H04N23/75—Circuitry for compensating brightness variation in the scene by influencing optical camera components
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/80—Camera processing pipelines; Components thereof
    • H04N23/84—Camera processing pipelines; Components thereof for processing colour signals
    • H04N23/88—Camera processing pipelines; Components thereof for processing colour signals for colour balance, e.g. white-balance circuits or colour temperature control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/10—Circuitry of solid-state image sensors [SSIS]; Control thereof for transforming different wavelengths into image signals
    • H04N25/11—Arrangement of colour filter arrays [CFA]; Filter mosaics
    • H04N25/13—Arrangement of colour filter arrays [CFA]; Filter mosaics characterised by the spectral characteristics of the filter elements
    • H04N25/134—Arrangement of colour filter arrays [CFA]; Filter mosaics characterised by the spectral characteristics of the filter elements based on three different wavelength filter elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Color Television Image Signal Generators (AREA)
TW087102415A 1997-03-21 1998-02-20 Video camera apparatus capable of simply extracting brightness information used in auto-iris control TW373412B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP06835697A JP4003246B2 (ja) 1997-03-21 1997-03-21 ビデオカメラ装置

Publications (1)

Publication Number Publication Date
TW373412B true TW373412B (en) 1999-11-01

Family

ID=13371458

Family Applications (1)

Application Number Title Priority Date Filing Date
TW087102415A TW373412B (en) 1997-03-21 1998-02-20 Video camera apparatus capable of simply extracting brightness information used in auto-iris control

Country Status (4)

Country Link
US (1) US6747704B1 (zh)
JP (1) JP4003246B2 (zh)
KR (1) KR100504974B1 (zh)
TW (1) TW373412B (zh)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6750906B1 (en) * 1998-05-08 2004-06-15 Cirrus Logic, Inc. Histogram-based automatic gain control method and system for video applications
JP3902492B2 (ja) * 2002-03-13 2007-04-04 株式会社リコー 撮像装置
JP3824225B2 (ja) * 2002-10-04 2006-09-20 ソニー株式会社 デジタルカメラ
JP4260003B2 (ja) * 2003-12-26 2009-04-30 三洋電機株式会社 電子カメラ
US20100225779A1 (en) * 2009-03-06 2010-09-09 Nokia Corporation Method and Device to extend camera battery life
KR101806289B1 (ko) * 2011-11-14 2017-12-07 삼성전자주식회사 촬상 장치

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4998162A (en) 1988-08-22 1991-03-05 Sony Corporation Video camera
EP0409161B1 (en) * 1989-07-18 2000-10-11 Fuji Photo Film Co., Ltd. Method and apparatus for controlling exposure changes of a video camera
JP3271196B2 (ja) * 1992-06-12 2002-04-02 ソニー株式会社 ビデオカメラ
JP3216022B2 (ja) * 1992-09-14 2001-10-09 キヤノン株式会社 撮像装置

Also Published As

Publication number Publication date
US6747704B1 (en) 2004-06-08
JP4003246B2 (ja) 2007-11-07
KR19980080516A (ko) 1998-11-25
KR100504974B1 (ko) 2005-11-08
JPH10271518A (ja) 1998-10-09

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees