KR880006914A - 영상 신호에 기초해서 초점의 자동정합을 행하는 오토 포커스 회로 - Google Patents

영상 신호에 기초해서 초점의 자동정합을 행하는 오토 포커스 회로

Info

Publication number
KR880006914A
KR880006914A KR1019870012896A KR870012896A KR880006914A KR 880006914 A KR880006914 A KR 880006914A KR 1019870012896 A KR1019870012896 A KR 1019870012896A KR 870012896 A KR870012896 A KR 870012896A KR 880006914 A KR880006914 A KR 880006914A
Authority
KR
South Korea
Prior art keywords
auto
video signal
focus circuit
focusing based
performs
Prior art date
Application number
KR1019870012896A
Other languages
English (en)
Other versions
KR930003570B1 (ko
Inventor
히로쯔구 무라시마
사또루 마에다
순기 히라노
Original Assignee
상요덴기 가부시기가이샤
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
Priority claimed from JP61273212A external-priority patent/JPS63125910A/ja
Priority claimed from JP62034763A external-priority patent/JPH078023B2/ja
Priority claimed from JP62049513A external-priority patent/JPH0634501B2/ja
Application filed by 상요덴기 가부시기가이샤 filed Critical 상요덴기 가부시기가이샤
Publication of KR880006914A publication Critical patent/KR880006914A/ko
Application granted granted Critical
Publication of KR930003570B1 publication Critical patent/KR930003570B1/ko

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
    • H04N23/673—Focus control based on electronic image sensor signals based on contrast or high frequency components of image signals, e.g. hill climbing method
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/32—Means for focusing
    • G03B13/34—Power focusing
    • G03B13/36—Autofocus systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automatic Focus Adjustment (AREA)
KR1019870012896A 1986-11-17 1987-11-16 영상 신호에 기초해서 초점의 자동정합을 행하는 오토 포커스 회로 KR930003570B1 (ko)

Applications Claiming Priority (12)

Application Number Priority Date Filing Date Title
JP61273212A JPS63125910A (ja) 1986-11-17 1986-11-17 オ−トフオ−カス回路
JP?61-273212 1986-11-17
JP30441186 1986-12-19
JP61-304411 1986-12-19
JP62-34763 1987-02-18
JP62034763A JPH078023B2 (ja) 1987-02-18 1987-02-18 オ−トフオ−カス回路
JP4340687 1987-02-26
JP62-49513 1987-02-26
JP62-43405 1987-02-26
JP4340587 1987-02-26
JP62049513A JPH0634501B2 (ja) 1987-03-04 1987-03-04 オ−トフオ−カスビデオカメラ
JP62-43406 1987-03-04

Publications (2)

Publication Number Publication Date
KR880006914A true KR880006914A (ko) 1988-07-25
KR930003570B1 KR930003570B1 (ko) 1993-05-06

Family

ID=27549736

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019870012896A KR930003570B1 (ko) 1986-11-17 1987-11-16 영상 신호에 기초해서 초점의 자동정합을 행하는 오토 포커스 회로

Country Status (6)

Country Link
US (2) US4841370A (ko)
EP (1) EP0268246B1 (ko)
KR (1) KR930003570B1 (ko)
AU (2) AU603618B2 (ko)
CA (1) CA1328012C (ko)
DE (1) DE3779401D1 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100842254B1 (ko) * 2005-11-21 2008-06-30 후지논 가부시키가이샤 구동 제어장치, 휴대광학기기 및 구동 제어방법

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US4998233A (en) * 1988-02-12 1991-03-05 International Business Machines Corporation Acquiring focus in optical systems using a focus error signal and a laser drive signal
JPH01246516A (ja) * 1988-03-29 1989-10-02 Sony Corp 焦点位置検出装置
CA1313466C (en) * 1988-05-11 1993-02-09 Kenichi Kikuchi Image sensing apparatus having automatic focusing function of automatically matching focus in response to video signal
US4928170A (en) * 1988-06-21 1990-05-22 Visualtek, Inc. Automatic focus control for an image magnification system
US5070408A (en) * 1989-05-19 1991-12-03 Sony Corporation Focusing apparatus and digital filters for use therewith
US5249058A (en) * 1989-08-08 1993-09-28 Sanyo Electric Co., Ltd. Apparatus for automatically focusing a camera lens
EP0417975B1 (en) * 1989-09-10 1997-04-02 Canon Kabushiki Kaisha Automatic focusing system
JPH03117275A (ja) * 1989-09-29 1991-05-20 Sanyo Electric Co Ltd オートフォーカスカメラ
JPH07118785B2 (ja) * 1989-10-27 1995-12-18 三菱電機株式会社 コントラスト検出装置およびこれを用いたオートフォーカス装置
JP2517415B2 (ja) * 1989-11-22 1996-07-24 三洋電機株式会社 オ―トフォ―カス方法
DE69127112T2 (de) * 1990-02-28 1998-03-05 Sanyo Electric Co Automatisches Fokussierungsgerät zur automatischen Fokusanpassung in Abhängigkeit von Videosignalen
JP2941980B2 (ja) * 1991-03-07 1999-08-30 キヤノン株式会社 自動焦点調節装置
JP3140146B2 (ja) * 1992-03-12 2001-03-05 キヤノン株式会社 レンズ駆動装置
US5410420A (en) * 1993-04-14 1995-04-25 Winey; Calvin M. Drum scanner focusing system
KR100275185B1 (ko) * 1993-06-17 2000-12-15 다카노 야스아키 영상 신호에 응답하여 촛점의 자동 정합을 행하는 오토 포커스 장치
US5943446A (en) * 1995-07-19 1999-08-24 Unisys Corporation Method and apparatus for increasing the speed of a full code book search in a quantizer encoder
US5969760A (en) * 1996-03-14 1999-10-19 Polaroid Corporation Electronic still camera having mechanically adjustable CCD to effect focus
JP4072220B2 (ja) * 1997-06-27 2008-04-09 キヤノン株式会社 フォーカス操作装置
JP3783812B2 (ja) * 1997-11-11 2006-06-07 株式会社トプコン 測量機の合焦制御装置
JP2002122778A (ja) * 2000-10-19 2002-04-26 Fuji Electric Co Ltd 自動焦点調節装置および電子的撮像装置
JP3728241B2 (ja) * 2001-12-20 2005-12-21 キヤノン株式会社 焦点調節装置、撮像装置、合焦方法、プログラム、及び記憶媒体
JP4198449B2 (ja) * 2002-02-22 2008-12-17 富士フイルム株式会社 デジタルカメラ
JP2004077959A (ja) * 2002-08-21 2004-03-11 Nikon Corp 焦点調節方法およびカメラ
JP3823921B2 (ja) * 2002-12-27 2006-09-20 コニカミノルタフォトイメージング株式会社 撮像装置
KR100562404B1 (ko) 2003-12-19 2006-03-17 삼성테크윈 주식회사 추가 스캐닝이 수행되는 카메라의 자동 포커싱 방법
TWI286660B (en) * 2004-09-23 2007-09-11 Asia Optical Co Inc Auto focus methods and auto focus devices for electronic cameras using the same
CN100543574C (zh) * 2004-10-22 2009-09-23 亚洲光学股份有限公司 自动对焦方法以及电子照相机的自动对焦装置
US8436932B2 (en) * 2005-04-22 2013-05-07 Hewlett-Packard Development Company, L.P. Focus target discrimination using multiple focus zones
TWI274222B (en) * 2005-06-27 2007-02-21 Asia Optical Co Inc Automatic focusing method and electronic apparatus using the method
GB2430096B (en) 2005-09-08 2010-06-16 Hewlett Packard Development Co Image data processing method and apparatus
CN1967370B (zh) * 2005-11-15 2011-12-28 致伸科技股份有限公司 数码相机的自动对焦方法
JP4769616B2 (ja) * 2006-03-27 2011-09-07 富士フイルム株式会社 駆動制御装置
US8947526B2 (en) * 2006-12-07 2015-02-03 Sensormatic Electronics, LLC Video surveillance system having communication acknowledgement nod
KR100820966B1 (ko) * 2006-12-07 2008-04-11 엘지전자 주식회사 온도 검출에 따른 카메라 동작 제어장치 및 방법
JP4989977B2 (ja) * 2007-01-05 2012-08-01 株式会社エルモ社 焦点調整装置、撮影装置および焦点調整方法
JP5157256B2 (ja) * 2007-05-28 2013-03-06 株式会社ニコン 画像追尾装置および撮像装置
JP5445150B2 (ja) * 2010-01-12 2014-03-19 株式会社リコー 自動合焦制御装置、電子撮像装置及びデジタルスチルカメラ
JP5722134B2 (ja) * 2011-06-23 2015-05-20 オリンパスイメージング株式会社 光学機器
DE102011121928B4 (de) * 2011-08-01 2015-03-05 Physik Instrumente (Pi) Gmbh & Co. Kg Anordnung zum Betreiben eines dynamischen Nanofokussiersystems
CN102981347B (zh) * 2012-12-25 2015-04-22 中国科学院长春光学精密机械与物理研究所 用于视频监控系统的susan自动对焦方法
WO2015015877A1 (ja) * 2013-07-29 2015-02-05 オリンパスメディカルシステムズ株式会社 撮像装置
CN117452619B (zh) * 2023-12-26 2024-03-05 西华大学 一种稀疏目标显微成像自动对焦方法、系统及存储介质

Family Cites Families (15)

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GB1193177A (en) * 1967-12-14 1970-05-28 Rank Organisation Ltd Improvements in or relating to Automatic Control Systems
US4161756A (en) * 1976-03-19 1979-07-17 Jos. Schneider & Co. Optische Werke Control system for varifocal objective
JPS56116007A (en) * 1980-02-18 1981-09-11 Olympus Optical Co Ltd Automatic focusing controller
JPS5793307A (en) * 1980-12-02 1982-06-10 Olympus Optical Co Ltd Automatic focusing system
JPS57188026A (en) * 1981-05-14 1982-11-18 Minolta Camera Co Ltd Driving device for photographing lens of automatic focusing camera
JPS5858505A (ja) * 1981-10-05 1983-04-07 Hitachi Ltd ビデオカメラのオ−トフオ−カス装置
JPS5897009A (ja) * 1981-12-04 1983-06-09 Olympus Optical Co Ltd 自動焦点調節方法
US4484806A (en) * 1982-04-28 1984-11-27 Matsushita Electric Industrial Co., Ltd. Automatic focussing apparatus
JPS6086972A (ja) * 1983-10-19 1985-05-16 Hitachi Ltd 自動合焦装置
JPS6087578A (ja) * 1983-10-20 1985-05-17 Matsushita Electric Ind Co Ltd ビデオカメラの焦点調節装置
JPS60103776A (ja) * 1983-11-10 1985-06-08 Sanyo Electric Co Ltd オ−トフオ−カス制御回路
JPS60135712A (ja) * 1983-12-23 1985-07-19 Hitachi Zosen Corp タ−ンテ−ブルの回転角度検出方法
JPH028456Y2 (ko) * 1984-10-26 1990-02-28
JPS61105978A (ja) * 1984-10-30 1986-05-24 Sanyo Electric Co Ltd オ−トフオ−カス回路
JPH0654366B2 (ja) * 1985-05-20 1994-07-20 ウエスト電気株式会社 ズ−ミング方法およびズ−ミング装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100842254B1 (ko) * 2005-11-21 2008-06-30 후지논 가부시키가이샤 구동 제어장치, 휴대광학기기 및 구동 제어방법

Also Published As

Publication number Publication date
CA1328012C (en) 1994-03-22
AU6089990A (en) 1990-11-15
KR930003570B1 (ko) 1993-05-06
DE3779401D1 (de) 1992-07-02
US4841370A (en) 1989-06-20
EP0268246A3 (en) 1989-02-22
AU603618B2 (en) 1990-11-22
EP0268246A2 (en) 1988-05-25
EP0268246B1 (en) 1992-05-27
US4903134A (en) 1990-02-20
AU614238B2 (en) 1991-08-22
AU8129587A (en) 1988-05-19

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