DE69516734D1 - Bildverarbeitungsverfahren und -gerät - Google Patents

Bildverarbeitungsverfahren und -gerät

Info

Publication number
DE69516734D1
DE69516734D1 DE69516734T DE69516734T DE69516734D1 DE 69516734 D1 DE69516734 D1 DE 69516734D1 DE 69516734 T DE69516734 T DE 69516734T DE 69516734 T DE69516734 T DE 69516734T DE 69516734 D1 DE69516734 D1 DE 69516734D1
Authority
DE
Germany
Prior art keywords
image processing
processing method
image
processing
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
DE69516734T
Other languages
English (en)
Other versions
DE69516734T2 (de
Inventor
Hidefumi Ohsawa
Yasuji Hirabayashi
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 JP1065594A external-priority patent/JPH07222149A/ja
Priority claimed from JP1065694A external-priority patent/JPH07222150A/ja
Priority claimed from JP1065794A external-priority patent/JPH07222151A/ja
Application filed by Canon Inc filed Critical Canon Inc
Application granted granted Critical
Publication of DE69516734D1 publication Critical patent/DE69516734D1/de
Publication of DE69516734T2 publication Critical patent/DE69516734T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00—Geometric image transformations in the plane of the image
    • G06T3/40—Scaling of whole images or parts thereof, e.g. expanding or contracting
    • G06T3/4084—Scaling of whole images or parts thereof, e.g. expanding or contracting in the transform domain, e.g. fast Fourier transform [FFT] domain scaling
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/007—Transform coding, e.g. discrete cosine transform

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Discrete Mathematics (AREA)
  • Multimedia (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
  • Image Processing (AREA)
DE69516734T 1994-02-01 1995-01-31 Bildverarbeitungsverfahren und -gerät Expired - Lifetime DE69516734T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP1065594A JPH07222149A (ja) 1994-02-01 1994-02-01 画像処理方法及び装置
JP1065694A JPH07222150A (ja) 1994-02-01 1994-02-01 画像処理方法及び装置
JP1065794A JPH07222151A (ja) 1994-02-01 1994-02-01 画像処理方法及び装置

Publications (2)

Publication Number Publication Date
DE69516734D1 true DE69516734D1 (de) 2000-06-15
DE69516734T2 DE69516734T2 (de) 2000-09-28

Family

ID=27279042

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69516734T Expired - Lifetime DE69516734T2 (de) 1994-02-01 1995-01-31 Bildverarbeitungsverfahren und -gerät

Country Status (3)

Country Link
US (1) US5875039A (de)
EP (1) EP0665512B1 (de)
DE (1) DE69516734T2 (de)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5845015A (en) 1995-10-12 1998-12-01 Sarnoff Corporation Method and apparatus for resizing images using the discrete cosine transform
US6360018B1 (en) * 1996-04-10 2002-03-19 Canon Kabushiki Kaisha Image processing apparatus and method
AU718453B2 (en) * 1996-07-17 2000-04-13 Sony Corporation Image coding and decoding using mapping coefficients corresponding to class information of pixel blocks
US6473533B1 (en) * 1996-10-25 2002-10-29 Fuji Xerox Co., Ltd. Image encoding apparatus and image decoding apparatus
JP4086341B2 (ja) * 1997-06-06 2008-05-14 キヤノン株式会社 画像処理装置およびその方法
US6108448A (en) * 1997-06-12 2000-08-22 International Business Machines Corporation System and method for extracting spatially reduced image sequences in a motion compensated compressed format
JP3198996B2 (ja) * 1997-08-26 2001-08-13 日本電気株式会社 直交変換符号化画像の画像サイズ変換方法
US6072536A (en) * 1997-10-29 2000-06-06 Lucent Technologies Inc. Method and apparatus for generating a composite image from individual compressed images
US6600785B1 (en) * 1997-12-01 2003-07-29 Matsushita Electric Industrial Image processor, image data processor and variable length encoder/decoder
JP2000217112A (ja) * 1999-01-22 2000-08-04 Asahi Optical Co Ltd 画像圧縮伸張装置および画素数増加装置
US6393154B1 (en) 1999-11-18 2002-05-21 Quikcat.Com, Inc. Method and apparatus for digital image compression using a dynamical system
US6778707B1 (en) * 1999-12-17 2004-08-17 Xerox Corporation Method for decompressing JPEG files using a variable block size inverse discrete cosine transform
JP3603000B2 (ja) * 2000-02-01 2004-12-15 カネボウ株式会社 ハフマン符号化装置、ハフマン符号化方法およびハフマン符号化処理プログラムを記録した記録媒体
US6970179B1 (en) 2000-05-12 2005-11-29 International Business Machines Corporation Method and apparatus for the scaling up of data
US7062098B1 (en) * 2000-05-12 2006-06-13 International Business Machines Corporation Method and apparatus for the scaling down of data
US6807310B1 (en) * 2000-05-23 2004-10-19 The Board Of Trustees Of The University Of Illinois Transformation of image parts in different domains to obtain resultant image size different from initial image size
US6670960B1 (en) 2000-09-06 2003-12-30 Koninklijke Philips Electronics N.V. Data transfer between RGB and YCRCB color spaces for DCT interface
US6940523B1 (en) 2000-11-15 2005-09-06 Koninklijke Philips Electronics N.V. On the fly data transfer between RGB and YCrCb color spaces for DCT interface
US7062101B2 (en) * 2001-03-30 2006-06-13 Ricoh Co., Ltd. Method and apparatus for storing bitplanes of coefficients in a reduced size memory
KR100394013B1 (ko) * 2001-06-23 2003-08-09 엘지전자 주식회사 비디오 스냅 영상용 변환 부호화 장치
US20050190982A1 (en) * 2003-11-28 2005-09-01 Matsushita Electric Industrial Co., Ltd. Image reducing device and image reducing method
EP1788796A4 (de) * 2004-08-30 2010-03-24 Fujitsu Microelectronics Ltd Bildwiederherstellungsvorrichtung, bildwiederherstellungsverfahren und bildwiederherstellungsprogramm
WO2006091041A1 (en) * 2005-02-24 2006-08-31 Lg Electronics Inc. Method for up-sampling/down-sampling data of a video block
FI20065754L (fi) * 2006-11-28 2008-05-29 Liquid Air Lab Gmbh Kuvankäsittelymenetelmä
US20090202165A1 (en) * 2008-02-13 2009-08-13 Kabushiki Kaisha Toshiba Image decoding method and image decoding apparatus
DE102009060553A1 (de) * 2009-08-24 2011-03-03 Vitaphone Gmbh Verfahren und System zur Speicherung und Auswertung von Daten, insbesondere Vitaldaten
JP2013178753A (ja) * 2012-02-01 2013-09-09 Canon Inc 画像処理装置および方法
KR20150107259A (ko) * 2014-03-13 2015-09-23 삼성전자주식회사 영상 처리 방법 및 이를 지원하는 전자 장치

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5028995A (en) * 1987-10-28 1991-07-02 Hitachi, Ltd. Picture signal processor, picture signal coder and picture signal interpolator
JP2563450B2 (ja) * 1988-03-10 1996-12-11 松下電器産業株式会社 ファイル用画像処理装置
US5309524A (en) * 1988-12-08 1994-05-03 Canon Kabushiki Kaisha Image reducing apparatus
JP2787832B2 (ja) * 1989-06-30 1998-08-20 キヤノン株式会社 画像縮小方法
US5251254A (en) * 1991-02-01 1993-10-05 Canon Kabushiki Kaisha Control of incoming and outgoing calls in a key system
JPH04297183A (ja) * 1991-02-28 1992-10-21 Mitsubishi Electric Corp 画像符号化装置
US5168375A (en) * 1991-09-18 1992-12-01 Polaroid Corporation Image reconstruction by use of discrete cosine and related transforms
JPH05261982A (ja) * 1992-03-23 1993-10-12 Seiko Epson Corp プリント装置
JPH05316357A (ja) * 1992-05-14 1993-11-26 Nippon Telegr & Teleph Corp <Ntt> 解像度変換方法
JPH06125543A (ja) * 1992-10-12 1994-05-06 Toshiba Corp 符号化装置
FR2700036B1 (fr) * 1992-11-17 1995-03-03 Jean Barda Procédé et dispositif pour le stockage et la visualisation d'image de grande dimension.
CA2171335A1 (en) * 1993-11-30 1995-06-08 Munib A. Wober Coding methods and apparatus for scaling and filtering images using discrete cosine transforms

Also Published As

Publication number Publication date
EP0665512A2 (de) 1995-08-02
EP0665512A3 (de) 1996-03-06
US5875039A (en) 1999-02-23
EP0665512B1 (de) 2000-05-10
DE69516734T2 (de) 2000-09-28

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