DE3907664C2 - - Google Patents

Info

Publication number
DE3907664C2
DE3907664C2 DE3907664A DE3907664A DE3907664C2 DE 3907664 C2 DE3907664 C2 DE 3907664C2 DE 3907664 A DE3907664 A DE 3907664A DE 3907664 A DE3907664 A DE 3907664A DE 3907664 C2 DE3907664 C2 DE 3907664C2
Authority
DE
Germany
Prior art keywords
area
object tracking
image
difference
peak value
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.)
Expired - Lifetime
Application number
DE3907664A
Other languages
German (de)
English (en)
Other versions
DE3907664A1 (de
Inventor
Katsuji Kawasaki Kanagawa Jp Yoshimura
Masamichi Toyama
Akihiro Fujiwara
Hirofumi Yokohama Kanagawa Jp Suda
Kunihiko Tanashi Tokio/Tokyo Jp Yamada
Kitahiro Yokohama Kanagawa Jp Kaneda
Hideo Tokio/Tokyo Jp Homma
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.)
Canon Inc
Original Assignee
Canon Inc
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 JP63057760A external-priority patent/JP2675807B2/ja
Priority claimed from JP63109642A external-priority patent/JP2715441B2/ja
Application filed by Canon Inc filed Critical Canon Inc
Priority to DE3943677A priority Critical patent/DE3943677C2/de
Publication of DE3907664A1 publication Critical patent/DE3907664A1/de
Application granted granted Critical
Publication of DE3907664C2 publication Critical patent/DE3907664C2/de
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/78—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using electromagnetic waves other than radio waves
    • G01S3/782—Systems for determining direction or deviation from predetermined direction
    • G01S3/785—Systems for determining direction or deviation from predetermined direction using adjustment of orientation of directivity characteristics of a detector or detector system to give a desired condition of signal derived from that detector or detector system
    • G01S3/786—Systems for determining direction or deviation from predetermined direction using adjustment of orientation of directivity characteristics of a detector or detector system to give a desired condition of signal derived from that detector or detector system the desired condition being maintained automatically
    • G01S3/7864—T.V. type tracking systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/28—Systems for automatic generation of focusing signals
    • G02B7/36—Systems for automatic generation of focusing signals using image sharpness techniques, e.g. image processing techniques for generating autofocus 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
    • H04N23/60—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
    • 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
    • H04N23/675—Focus control based on electronic image sensor signals comprising setting of focusing regions
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Automatic Focus Adjustment (AREA)
DE3907664A 1988-03-11 1989-03-09 Bildaufnahmeeinrichtung Granted DE3907664A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE3943677A DE3943677C2 (de) 1988-03-11 1989-03-09 Bildaufnahmeeinrichtung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP63057760A JP2675807B2 (ja) 1988-03-11 1988-03-11 撮像装置
JP63109642A JP2715441B2 (ja) 1988-05-02 1988-05-02 撮像装置

Publications (2)

Publication Number Publication Date
DE3907664A1 DE3907664A1 (de) 1989-10-19
DE3907664C2 true DE3907664C2 (US06650917-20031118-M00005.png) 1992-12-17

Family

ID=26398835

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3907664A Granted DE3907664A1 (de) 1988-03-11 1989-03-09 Bildaufnahmeeinrichtung

Country Status (3)

Country Link
US (1) US5442397A (US06650917-20031118-M00005.png)
DE (1) DE3907664A1 (US06650917-20031118-M00005.png)
GB (3) GB2216743B (US06650917-20031118-M00005.png)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2219461B (en) * 1988-05-02 1992-11-18 Canon Kk Exposure control device
DE4102196C2 (de) * 1990-01-26 2002-08-01 Olympus Optical Co Abbildungsvorrichtung zum Nachführen eines Objektes
DE69121930T2 (de) * 1990-02-08 1997-04-03 Canon Kk Bildaufnahmevorrichtung
JP3103587B2 (ja) * 1990-04-25 2000-10-30 オリンパス光学工業株式会社 自動合焦装置
KR930007231A (ko) * 1991-09-13 1993-04-22 강진구 캠코더의 물체추적장치와 그 방법
US5392088A (en) * 1992-09-04 1995-02-21 Nikon Corporation Target follow-up device and camera comprising the same
US5473369A (en) * 1993-02-25 1995-12-05 Sony Corporation Object tracking apparatus
JPH089228A (ja) * 1994-06-17 1996-01-12 Matsushita Electric Ind Co Ltd ビデオカメラ
JP3108355B2 (ja) * 1996-02-02 2000-11-13 三洋電機株式会社 被写体追尾カメラ装置
DE69836017T2 (de) * 1997-05-16 2007-06-06 Sanyo Electric Co., Ltd., Moriguchi Automatische fokusiereinrichtung
US6657668B1 (en) * 1997-11-19 2003-12-02 Ricoh Company, Ltd. Method, system, and computer readable medium for controlling automatic focusing of a digital camera
US6972798B1 (en) * 1999-08-31 2005-12-06 Canon Kabushiki Kaisha Focusing device and method
US6952224B2 (en) * 2001-03-30 2005-10-04 Intel Corporation Object trackability via parametric camera tuning
DE10305851B4 (de) * 2003-02-12 2005-12-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Einstellung eines Bildaufnehmers mit dynamischen Meßfeldern
JP4242796B2 (ja) * 2004-03-12 2009-03-25 パナソニック株式会社 画像認識方法及び画像認識装置
KR100793230B1 (ko) * 2006-07-24 2008-01-10 엘지전자 주식회사 카메라의 부분 역광 보정장치 및 방법
JP5178797B2 (ja) * 2010-09-13 2013-04-10 キヤノン株式会社 表示制御装置及び表示制御方法
EP3422068B1 (en) 2017-06-26 2019-05-01 Axis AB A method of focusing a camera
CN111917989B (zh) * 2020-09-15 2022-01-21 苏州臻迪智能科技有限公司 一种视频拍摄方法及装置

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1409448A (en) * 1966-04-27 1975-10-08 Emi Ltd Automatic target following apparatus
US4053929A (en) * 1969-04-07 1977-10-11 The United States Of America As Represented By The Secretary Of The Army Contour fitting pictorial tracking gate
FR2302004A5 (fr) * 1973-08-31 1976-09-17 Thomson Csf Systeme de poursuite automatique d'une cible, procedant par analyse de contraste video
US4220967A (en) * 1976-09-27 1980-09-02 Hughes Aircraft Company Scene tracker using multiple independent correlators
JPS5589819A (en) * 1978-12-28 1980-07-07 Asahi Optical Co Ltd Focus detector of camera
SE8404576L (sv) * 1983-09-23 1985-03-24 American Telephone & Telegraph Detaljdetektor for maskinvideo
JPS61105978A (ja) * 1984-10-30 1986-05-24 Sanyo Electric Co Ltd オ−トフオ−カス回路
US4719584A (en) * 1985-04-01 1988-01-12 Hughes Aircraft Company Dual mode video tracker
FR2580088B1 (US06650917-20031118-M00005.png) * 1985-04-05 1987-05-15 Trt Telecom Radio Electr
US4831403A (en) * 1985-12-27 1989-05-16 Minolta Camera Kabushiki Kaisha Automatic focus detection system
JPS63246709A (ja) * 1986-05-16 1988-10-13 Minolta Camera Co Ltd 焦点検出装置
GB2209901B (en) * 1987-09-11 1992-06-03 Canon Kk Image sensing device
US4899194A (en) * 1987-11-24 1990-02-06 Fuji Photo Film Co., Ltd. Method of and device for detecting image
US5339163A (en) * 1988-03-16 1994-08-16 Canon Kabushiki Kaisha Automatic exposure control device using plural image plane detection areas
JP2749921B2 (ja) * 1989-12-29 1998-05-13 キヤノン株式会社 撮像装置
JP2766067B2 (ja) * 1990-10-31 1998-06-18 キヤノン株式会社 撮像装置

Also Published As

Publication number Publication date
DE3907664A1 (de) 1989-10-19
US5442397A (en) 1995-08-15
GB8905370D0 (en) 1989-04-19
GB2256988B (en) 1993-04-07
GB2258967B (en) 1993-05-12
GB2216743B (en) 1993-03-03
GB2216743A (en) 1989-10-11
GB2258967A (en) 1993-02-24
GB2256988A (en) 1992-12-23
GB9218070D0 (en) 1992-10-14
GB9223270D0 (en) 1992-12-23

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