KR102137768B1 - 광 흐름 기반 자동 초점 - Google Patents

광 흐름 기반 자동 초점 Download PDF

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Publication number
KR102137768B1
KR102137768B1 KR1020187030922A KR20187030922A KR102137768B1 KR 102137768 B1 KR102137768 B1 KR 102137768B1 KR 1020187030922 A KR1020187030922 A KR 1020187030922A KR 20187030922 A KR20187030922 A KR 20187030922A KR 102137768 B1 KR102137768 B1 KR 102137768B1
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South Korea
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time
camera
vectors
image
features
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Korean (ko)
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KR20180124981A (ko
Inventor
블라드 씨. 카르데이
안드레이 엣수닌코
에드워드 장
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구글 엘엘씨
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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/20—Image preprocessing
    • G06V10/25—Determination of region of interest [ROI] or a volume of interest [VOI]
    • 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
    • G06K9/3233—
    • 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
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/144—Movement detection
    • H04N5/23212—

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Studio Devices (AREA)
  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)
KR1020187030922A 2016-06-03 2016-12-09 광 흐름 기반 자동 초점 Active KR102137768B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US15/173,306 US9883097B2 (en) 2016-06-03 2016-06-03 Optical flow based auto focus
US15/173,306 2016-06-03
PCT/US2016/065882 WO2017209789A1 (en) 2016-06-03 2016-12-09 Optical flow based auto focus

Publications (2)

Publication Number Publication Date
KR20180124981A KR20180124981A (ko) 2018-11-21
KR102137768B1 true KR102137768B1 (ko) 2020-07-24

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ID=57750616

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020187030922A Active KR102137768B1 (ko) 2016-06-03 2016-12-09 광 흐름 기반 자동 초점

Country Status (6)

Country Link
US (1) US9883097B2 (https=)
EP (1) EP3466049A1 (https=)
JP (1) JP7090031B2 (https=)
KR (1) KR102137768B1 (https=)
CN (1) CN109196851B (https=)
WO (1) WO2017209789A1 (https=)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7289714B2 (ja) * 2019-04-26 2023-06-12 キヤノン株式会社 焦点調整装置、撮像装置、焦点調整方法、およびプログラム
KR20220017298A (ko) 2020-08-04 2022-02-11 삼성전자주식회사 프리뷰 이미지를 제어하는 전자 장치 및 방법
EP4320472A4 (en) 2021-10-12 2024-11-06 Samsung Electronics Co., Ltd. DEVICE AND METHOD FOR PREDICTED AUTOFOCUSING ON AN OBJECT
KR102866715B1 (ko) * 2025-02-27 2025-10-01 국방과학연구소 전자 장치의 동작 방법 및 이를 수행하기 위한 전자 장치

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013130827A (ja) * 2011-12-22 2013-07-04 Canon Inc レンズ制御装置
US20140253785A1 (en) * 2013-03-07 2014-09-11 Mediatek Inc. Auto Focus Based on Analysis of State or State Change of Image Content
JP2015225340A (ja) * 2014-05-23 2015-12-14 プレストン ハワード カメラのフォーカスを合わせるための方法、装置、システム、およびソフトウェア

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JP2621285B2 (ja) * 1988-01-29 1997-06-18 ソニー株式会社 フォーカス制御回路
JP2756293B2 (ja) * 1989-02-06 1998-05-25 キヤノン株式会社 自動焦点調節装置
US5012270A (en) * 1988-03-10 1991-04-30 Canon Kabushiki Kaisha Image shake detecting device
JP2004205982A (ja) * 2002-12-26 2004-07-22 Pentax Corp 自動焦点調節装置
JP4332732B2 (ja) * 2004-07-09 2009-09-16 富士フイルム株式会社 デジタルカメラおよびズームポジション誘導方法
US7538813B2 (en) 2005-05-11 2009-05-26 Sony Ericsson Mobile Communications Ab Digital cameras with triangulation autofocus systems and related methods
JP4118322B2 (ja) * 2005-11-22 2008-07-16 松下電器産業株式会社 撮影装置、携帯端末装置、撮影方法、およびプログラム
JP2009031760A (ja) * 2007-07-04 2009-02-12 Sanyo Electric Co Ltd 撮像装置及びオートフォーカス制御方法
JP2010282340A (ja) * 2009-06-03 2010-12-16 Seiko Epson Corp 画像に含まれる目の状態を判定する画像処理装置、画像処理方法、画像処理プログラム、および、印刷装置
JP5564996B2 (ja) * 2009-07-23 2014-08-06 株式会社リコー 撮像装置及び撮像方法
GB2480422B (en) 2010-02-25 2014-07-09 Imagination Tech Ltd Object tracking using graphics engine derived vectors in a motion estimation system
US8508652B2 (en) 2011-02-03 2013-08-13 DigitalOptics Corporation Europe Limited Autofocus method
GB201113527D0 (en) 2011-08-04 2011-09-21 Imagination Tech Ltd External vectors in a motion estimation system
GB201208088D0 (en) * 2012-05-09 2012-06-20 Ncam Sollutions Ltd Ncam
KR20140102443A (ko) * 2013-02-14 2014-08-22 삼성전자주식회사 카메라를 이용한 물체 추적 방법 및 이를 위한 카메라 시스템
TWI508001B (zh) * 2013-10-30 2015-11-11 Wistron Corp 路人偵測方法、裝置與電腦程式產品

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013130827A (ja) * 2011-12-22 2013-07-04 Canon Inc レンズ制御装置
US20140253785A1 (en) * 2013-03-07 2014-09-11 Mediatek Inc. Auto Focus Based on Analysis of State or State Change of Image Content
JP2015225340A (ja) * 2014-05-23 2015-12-14 プレストン ハワード カメラのフォーカスを合わせるための方法、装置、システム、およびソフトウェア

Also Published As

Publication number Publication date
EP3466049A1 (en) 2019-04-10
WO2017209789A1 (en) 2017-12-07
CN109196851B (zh) 2021-03-16
US20170353653A1 (en) 2017-12-07
US9883097B2 (en) 2018-01-30
KR20180124981A (ko) 2018-11-21
JP7090031B2 (ja) 2022-06-23
CN109196851A (zh) 2019-01-11
JP2019518370A (ja) 2019-06-27

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