DE19983806B4 - Ein die diskrete Wavelet-Transformation verwendender Autofokus-Algorithmus - Google Patents

Ein die diskrete Wavelet-Transformation verwendender Autofokus-Algorithmus Download PDF

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Publication number
DE19983806B4
DE19983806B4 DE19983806T DE19983806T DE19983806B4 DE 19983806 B4 DE19983806 B4 DE 19983806B4 DE 19983806 T DE19983806 T DE 19983806T DE 19983806 T DE19983806 T DE 19983806T DE 19983806 B4 DE19983806 B4 DE 19983806B4
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DE
Germany
Prior art keywords
focus
focus position
dwt
parameter
sharpness
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 - Fee Related
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DE19983806T
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German (de)
English (en)
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DE19983806T1 (de
Inventor
Tinku Tempe Acharya
Werner Chandler Metz
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Intel Corp
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Intel Corp
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Publication date
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Publication of DE19983806T1 publication Critical patent/DE19983806T1/de
Application granted granted Critical
Publication of DE19983806B4 publication Critical patent/DE19983806B4/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/63—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Automatic Focus Adjustment (AREA)
  • Studio Devices (AREA)
  • Focusing (AREA)
  • Image Input (AREA)
  • Image Analysis (AREA)
DE19983806T 1998-12-14 1999-11-10 Ein die diskrete Wavelet-Transformation verwendender Autofokus-Algorithmus Expired - Fee Related DE19983806B4 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/211,309 US6151415A (en) 1998-12-14 1998-12-14 Auto-focusing algorithm using discrete wavelet transform
US09/211,309 1998-12-14
PCT/US1999/026664 WO2000036551A1 (en) 1998-12-14 1999-11-10 An auto-focusing algorithm using discrete wavelet transform

Publications (2)

Publication Number Publication Date
DE19983806T1 DE19983806T1 (de) 2002-01-10
DE19983806B4 true DE19983806B4 (de) 2004-04-01

Family

ID=22786377

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19983806T Expired - Fee Related DE19983806B4 (de) 1998-12-14 1999-11-10 Ein die diskrete Wavelet-Transformation verwendender Autofokus-Algorithmus

Country Status (8)

Country Link
US (1) US6151415A (enExample)
JP (1) JP2002532761A (enExample)
KR (1) KR100426934B1 (enExample)
AU (1) AU1617300A (enExample)
DE (1) DE19983806B4 (enExample)
GB (1) GB2358978B (enExample)
TW (1) TW493341B (enExample)
WO (1) WO2000036551A1 (enExample)

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US6738520B1 (en) 2000-06-19 2004-05-18 Intel Corporation Method of compressing an image
US7046728B1 (en) 2000-06-30 2006-05-16 Intel Corporation Method of video coding the movement of a human face from a sequence of images
US6775413B1 (en) 2000-09-18 2004-08-10 Intel Corporation Techniques to implement one-dimensional compression
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US6889237B2 (en) * 2001-03-30 2005-05-03 Intel Corporation Two-dimensional pyramid filter architecture
US20020184276A1 (en) * 2001-03-30 2002-12-05 Tinku Acharya Two-dimensional pyramid filter architecture
US20030118245A1 (en) * 2001-12-21 2003-06-26 Leonid Yaroslavsky Automatic focusing of an imaging system
US6624688B2 (en) 2002-01-07 2003-09-23 Intel Corporation Filtering variable offset amplifer
US7538815B1 (en) 2002-01-23 2009-05-26 Marena Systems Corporation Autofocus system and method using focus measure gradient
US6650184B2 (en) 2002-03-15 2003-11-18 Intel Corporation High gain amplifier circuits and their applications
US20040042551A1 (en) * 2002-09-04 2004-03-04 Tinku Acharya Motion estimation
US7266151B2 (en) * 2002-09-04 2007-09-04 Intel Corporation Method and system for performing motion estimation using logarithmic search
US20040057626A1 (en) * 2002-09-23 2004-03-25 Tinku Acharya Motion estimation using a context adaptive search
US6876776B2 (en) * 2003-02-14 2005-04-05 Ikonicys, Inc. System and method for auto-focusing an image
US7274393B2 (en) * 2003-02-28 2007-09-25 Intel Corporation Four-color mosaic pattern for depth and image capture
US20040169748A1 (en) * 2003-02-28 2004-09-02 Tinku Acharya Sub-sampled infrared sensor for use in a digital image capture device
US20040174446A1 (en) * 2003-02-28 2004-09-09 Tinku Acharya Four-color mosaic pattern for depth and image capture
US7589781B2 (en) * 2005-01-26 2009-09-15 Omnivision Technologies, Inc. Automatic focus for image sensors
US7676103B2 (en) * 2005-06-20 2010-03-09 Intel Corporation Enhancing video sharpness and contrast by luminance and chrominance transient improvement
US20070014468A1 (en) * 2005-07-12 2007-01-18 Gines David L System and method for confidence measures for mult-resolution auto-focused tomosynthesis
JP4636979B2 (ja) * 2005-09-09 2011-02-23 キヤノン株式会社 撮像装置及びその制御方法
US20080025630A1 (en) * 2006-07-28 2008-01-31 Atmel Corporation Adaptive noise filtering for reducing imager noise in digital image applications
KR101488655B1 (ko) * 2007-09-14 2015-02-03 삼성전자 주식회사 자동 초점 조절 장치 및 방법
RU2389050C1 (ru) * 2008-10-30 2010-05-10 Общество с ограниченной ответственностью Научно-Производственная компания "СенсорИС" Способ автоматической фокусировки
WO2011005238A1 (en) 2009-07-08 2011-01-13 Freescale Semiconductor, Inc. Degree-of-focus determination module, position-of-best-focus selection modules, image processing module, imaging system, and corresponding method
DE102009035587B3 (de) * 2009-07-31 2011-03-24 Siemens Aktiengesellschaft Verfahren zur Filterung eines Chromatogramms
US8294811B2 (en) * 2009-08-04 2012-10-23 Aptina Imaging Corporation Auto-focusing techniques based on statistical blur estimation and associated systems and methods
FR2949003B1 (fr) * 2009-08-10 2017-09-08 Dxo Labs Systeme et procede de capture d'images avec deux modes de fonctionnement
US8666194B2 (en) 2009-08-28 2014-03-04 Adobe Systems Incorporated System and method for editing frequency content of images
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KR101157791B1 (ko) * 2010-06-10 2012-06-19 주식회사 휴비츠 자동 포커싱 시스템을 구비한 광학 현미경
US9398205B2 (en) * 2010-09-01 2016-07-19 Apple Inc. Auto-focus control using image statistics data with coarse and fine auto-focus scores
CN102445812B (zh) * 2010-10-13 2013-10-16 致茂电子(苏州)有限公司 高速自动对焦方法
JP4988057B1 (ja) * 2011-10-11 2012-08-01 アキュートロジック株式会社 全焦点画像生成方法、全焦点画像生成装置、全焦点画像生成プログラム、被写体高さ情報取得方法、被写体高さ情報取得装置及び被写体高さ情報取得プログラム
JP6467257B2 (ja) * 2015-03-17 2019-02-06 キヤノン株式会社 情報処理装置、情報処理方法及びプログラム
TWI782280B (zh) * 2020-06-01 2022-11-01 財團法人國家實驗研究院 應用於遙測衛星的自動對焦方法及該遙測衛星
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US5200828A (en) * 1990-03-19 1993-04-06 Sam Jung Co., Ltd. Autofocusing device for use in a video camera and an autofocusing method thereof

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Patent Citations (2)

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US5200828A (en) * 1990-03-19 1993-04-06 Sam Jung Co., Ltd. Autofocusing device for use in a video camera and an autofocusing method thereof

Also Published As

Publication number Publication date
KR100426934B1 (ko) 2004-04-13
WO2000036551A1 (en) 2000-06-22
DE19983806T1 (de) 2002-01-10
GB0113364D0 (en) 2001-07-25
KR20010093824A (ko) 2001-10-29
GB2358978A (en) 2001-08-08
TW493341B (en) 2002-07-01
AU1617300A (en) 2000-07-03
US6151415A (en) 2000-11-21
JP2002532761A (ja) 2002-10-02
GB2358978B (en) 2003-07-02

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8125 Change of the main classification

Ipc: G02B 7/28

8607 Notification of search results after publication
8364 No opposition during term of opposition
R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee