TW490976B - Method and apparatus for automatic focusing in an image capture system using symmetric fir filters - Google Patents

Method and apparatus for automatic focusing in an image capture system using symmetric fir filters Download PDF

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Publication number
TW490976B
TW490976B TW089117216A TW89117216A TW490976B TW 490976 B TW490976 B TW 490976B TW 089117216 A TW089117216 A TW 089117216A TW 89117216 A TW89117216 A TW 89117216A TW 490976 B TW490976 B TW 490976B
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TW
Taiwan
Prior art keywords
focus
range
patent application
image
absolute value
Prior art date
Application number
TW089117216A
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English (en)
Chinese (zh)
Inventor
Yap-Peng Tan
Brent Thomas
Tinku Acharya
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Intel Corp
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Publication date
Application filed by Intel Corp filed Critical Intel Corp
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Publication of TW490976B publication Critical patent/TW490976B/zh

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    • 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
    • H04N23/60—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)
  • Studio Devices (AREA)
  • Automatic Focus Adjustment (AREA)
  • Image Processing (AREA)
  • Color Television Image Signal Generators (AREA)
  • Color Image Communication Systems (AREA)
  • Focusing (AREA)
TW089117216A 1999-08-25 2000-09-19 Method and apparatus for automatic focusing in an image capture system using symmetric fir filters TW490976B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/383,117 US6373481B1 (en) 1999-08-25 1999-08-25 Method and apparatus for automatic focusing in an image capture system using symmetric FIR filters

Publications (1)

Publication Number Publication Date
TW490976B true TW490976B (en) 2002-06-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
TW089117216A TW490976B (en) 1999-08-25 2000-09-19 Method and apparatus for automatic focusing in an image capture system using symmetric fir filters

Country Status (10)

Country Link
US (1) US6373481B1 (enExample)
JP (1) JP2003507769A (enExample)
KR (1) KR100449835B1 (enExample)
AU (1) AU771694B2 (enExample)
DE (1) DE10084921B4 (enExample)
GB (1) GB2370111B (enExample)
IL (2) IL148240A0 (enExample)
RU (1) RU2222113C2 (enExample)
TW (1) TW490976B (enExample)
WO (1) WO2001015434A1 (enExample)

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US6625308B1 (en) 1999-09-10 2003-09-23 Intel Corporation Fuzzy distinction based thresholding technique for image segmentation
US6658399B1 (en) 1999-09-10 2003-12-02 Intel Corporation Fuzzy based thresholding technique for image segmentation
US7053944B1 (en) 1999-10-01 2006-05-30 Intel Corporation Method of using hue to interpolate color pixel signals
US6628827B1 (en) 1999-12-14 2003-09-30 Intel Corporation Method of upscaling a color image
US7158178B1 (en) 1999-12-14 2007-01-02 Intel Corporation Method of converting a sub-sampled color image
US6933970B2 (en) * 1999-12-20 2005-08-23 Texas Instruments Incorporated Digital still camera system and method
US6748118B1 (en) 2000-02-18 2004-06-08 Intel Corporation Method of quantizing signal samples of an image during same
US6961472B1 (en) 2000-02-18 2005-11-01 Intel Corporation Method of inverse quantized signal samples of an image during image decompression
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
US6563439B1 (en) 2000-10-31 2003-05-13 Intel Corporation Method of performing Huffman decoding
US6636167B1 (en) 2000-10-31 2003-10-21 Intel Corporation Method of generating Huffman code length information
US20020118746A1 (en) * 2001-01-03 2002-08-29 Kim Hyun Mun Method of performing video encoding rate control using motion estimation
US6766286B2 (en) 2001-03-28 2004-07-20 Intel Corporation Pyramid filter
US20020184276A1 (en) * 2001-03-30 2002-12-05 Tinku Acharya Two-dimensional pyramid filter architecture
US6889237B2 (en) * 2001-03-30 2005-05-03 Intel Corporation Two-dimensional pyramid filter architecture
US7538815B1 (en) 2002-01-23 2009-05-26 Marena Systems Corporation Autofocus system and method using focus measure gradient
US7266151B2 (en) * 2002-09-04 2007-09-04 Intel Corporation Method and system for performing motion estimation using logarithmic search
US20040042551A1 (en) * 2002-09-04 2004-03-04 Tinku Acharya Motion estimation
US20040057626A1 (en) * 2002-09-23 2004-03-25 Tinku Acharya Motion estimation using a context adaptive search
US7274393B2 (en) * 2003-02-28 2007-09-25 Intel Corporation Four-color mosaic pattern for depth and image capture
US20040174446A1 (en) * 2003-02-28 2004-09-09 Tinku Acharya 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
KR100827240B1 (ko) * 2006-10-02 2008-05-07 삼성전자주식회사 다채널 보간 장치 및 방법
JP2010015024A (ja) * 2008-07-04 2010-01-21 Canon Inc 撮像装置、その制御方法、プログラム及び記憶媒体
KR101531709B1 (ko) * 2008-10-17 2015-07-06 삼성전자 주식회사 고감도 컬러 영상을 제공하기 위한 영상 처리 장치 및 방법
US8624998B2 (en) * 2009-06-05 2014-01-07 Apple Inc. Camera image selection based on detected device movement
US8289400B2 (en) 2009-06-05 2012-10-16 Apple Inc. Image capturing device having continuous image capture
US8134115B2 (en) * 2009-06-23 2012-03-13 Nokia Corporation Color filters for sub-diffraction limit-sized light sensors
US9354489B2 (en) * 2014-02-10 2016-05-31 Raytheon Company Robust autofocus algorithm for multi-spectral imaging systems
KR101912322B1 (ko) 2017-08-08 2018-10-26 인천대학교 산학협력단 스파우트 스트랩

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EP0436511B1 (en) 1990-01-05 1997-07-16 Canon Kabushiki Kaisha In-focus detecting device
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JP3501252B2 (ja) 1995-06-16 2004-03-02 三菱電機株式会社 階調補正装置
JP3563508B2 (ja) * 1995-10-19 2004-09-08 富士写真フイルム株式会社 自動焦点調節装置
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KR100200628B1 (ko) 1996-09-30 1999-06-15 윤종용 화질 개선 회로 및 그 방법
US6151415A (en) * 1998-12-14 2000-11-21 Intel Corporation Auto-focusing algorithm using discrete wavelet transform

Also Published As

Publication number Publication date
AU771694B2 (en) 2004-04-01
KR100449835B1 (ko) 2004-09-22
GB2370111B (en) 2003-12-31
GB0203899D0 (en) 2002-04-03
DE10084921T1 (de) 2002-08-29
RU2002107312A (ru) 2004-02-10
AU6538800A (en) 2001-03-19
KR20020033461A (ko) 2002-05-06
US6373481B1 (en) 2002-04-16
RU2222113C2 (ru) 2004-01-20
GB2370111A (en) 2002-06-19
IL148240A0 (en) 2002-09-12
JP2003507769A (ja) 2003-02-25
IL148240A (en) 2007-08-19
WO2001015434A1 (en) 2001-03-01
DE10084921B4 (de) 2008-03-20

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