DE69841761D1 - Verfahren und Gerät zur Durchführung der Diskreten-Cosinus-Transformation und inversen Diskreten-Cosinus-Transformation - Google Patents

Verfahren und Gerät zur Durchführung der Diskreten-Cosinus-Transformation und inversen Diskreten-Cosinus-Transformation

Info

Publication number
DE69841761D1
DE69841761D1 DE69841761T DE69841761T DE69841761D1 DE 69841761 D1 DE69841761 D1 DE 69841761D1 DE 69841761 T DE69841761 T DE 69841761T DE 69841761 T DE69841761 T DE 69841761T DE 69841761 D1 DE69841761 D1 DE 69841761D1
Authority
DE
Germany
Prior art keywords
discrete cosine
image
cosine transformation
point
combination
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
DE69841761T
Other languages
English (en)
Inventor
Ching Fang Chang
C C Lee
Naofumi Yanagihara
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.)
Sony Electronics Inc
Original Assignee
Sony Electronics 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 US08/971,328 external-priority patent/US6137916A/en
Priority claimed from US08/971,904 external-priority patent/US6215909B1/en
Application filed by Sony Electronics Inc filed Critical Sony Electronics Inc
Application granted granted Critical
Publication of DE69841761D1 publication Critical patent/DE69841761D1/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
    • G06T9/00—Image coding
    • G06T9/007—Transform coding, e.g. discrete cosine transform
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
    • G06F17/147—Discrete orthonormal transforms, e.g. discrete cosine transform, discrete sine transform, and variations therefrom, e.g. modified discrete cosine transform, integer transforms approximating the discrete cosine transform

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Data Mining & Analysis (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Computational Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • Multimedia (AREA)
  • Algebra (AREA)
  • Databases & Information Systems (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Complex Calculations (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
  • Editing Of Facsimile Originals (AREA)
DE69841761T 1997-11-17 1998-11-17 Verfahren und Gerät zur Durchführung der Diskreten-Cosinus-Transformation und inversen Diskreten-Cosinus-Transformation Expired - Lifetime DE69841761D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/971,328 US6137916A (en) 1997-11-17 1997-11-17 Method and system for improved digital video data processing using 8-point discrete cosine transforms
US08/971,904 US6215909B1 (en) 1997-11-17 1997-11-17 Method and system for improved digital video data processing using 4-point discrete cosine transforms

Publications (1)

Publication Number Publication Date
DE69841761D1 true DE69841761D1 (de) 2010-08-26

Family

ID=27130546

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69841761T Expired - Lifetime DE69841761D1 (de) 1997-11-17 1998-11-17 Verfahren und Gerät zur Durchführung der Diskreten-Cosinus-Transformation und inversen Diskreten-Cosinus-Transformation

Country Status (6)

Country Link
EP (1) EP0917070B1 (de)
JP (1) JP4688988B2 (de)
CN (4) CN1213612C (de)
AT (1) ATE474276T1 (de)
DE (1) DE69841761D1 (de)
TW (1) TW498223B (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060177416A1 (en) 2003-10-14 2006-08-10 Medivas, Llc Polymer particle delivery compositions and methods of use
CN100426678C (zh) * 2004-03-04 2008-10-15 上海杰得微电子有限公司 8×8两维整数离散余弦变换的变换电路及反变换电路
US7487193B2 (en) * 2004-05-14 2009-02-03 Microsoft Corporation Fast video codec transform implementations
EP1926780B1 (de) 2005-09-22 2013-08-14 Medivas, LLC Bis-( -amino)-diol-diester-haltige poly(esteramid) und poly(esterurethan)-zusammensetzungen und verwendungsverfahren
US8652504B2 (en) 2005-09-22 2014-02-18 Medivas, Llc Solid polymer delivery compositions and methods for use thereof
US9110849B2 (en) 2009-04-15 2015-08-18 Qualcomm Incorporated Computing even-sized discrete cosine transforms
US9069713B2 (en) 2009-06-05 2015-06-30 Qualcomm Incorporated 4X4 transform for media coding
US8762441B2 (en) * 2009-06-05 2014-06-24 Qualcomm Incorporated 4X4 transform for media coding
US9075757B2 (en) 2009-06-24 2015-07-07 Qualcomm Incorporated 16-point transform for media data coding
US9081733B2 (en) 2009-06-24 2015-07-14 Qualcomm Incorporated 16-point transform for media data coding
US9118898B2 (en) 2009-06-24 2015-08-25 Qualcomm Incorporated 8-point transform for media data coding
US9824066B2 (en) 2011-01-10 2017-11-21 Qualcomm Incorporated 32-point transform for media data coding
CN102395031B (zh) * 2011-11-23 2013-08-07 清华大学 一种数据压缩方法
US9952539B2 (en) 2012-09-27 2018-04-24 Electronics For Imaging, Inc. Method and apparatus for variable gloss reduction
GB2517488A (en) 2013-08-23 2015-02-25 Here Global Bv Frequency transformed radiomap data set

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4385363A (en) * 1978-12-15 1983-05-24 Compression Labs, Inc. Discrete cosine transformer
FR2599872B1 (fr) * 1986-06-06 1988-07-29 Thomson Csf Dispositifs de calcul de transformees cosinus mono-dimensionnelles, et dispositif de codage et dispositif de decodage d'images comportant de tels dispositifs de calcul
FR2643477B1 (fr) * 1989-02-23 1991-06-07 France Etat Procede de determination de transformee en cosinus discrete
US5341318A (en) * 1990-03-14 1994-08-23 C-Cube Microsystems, Inc. System for compression and decompression of video data using discrete cosine transform and coding techniques
JP2866754B2 (ja) * 1991-03-27 1999-03-08 三菱電機株式会社 演算処理装置
US5539836A (en) * 1991-12-20 1996-07-23 Alaris Inc. Method and apparatus for the realization of two-dimensional discrete cosine transform for an 8*8 image fragment
JP3546437B2 (ja) * 1993-03-31 2004-07-28 ソニー株式会社 適応形ビデオ信号演算処理装置
US5561618A (en) * 1993-12-22 1996-10-01 Qualcomm Incorporated Method and apparatus for performing a fast Hadamard transform
US5574661A (en) * 1994-07-29 1996-11-12 Compcore Multimedia, Inc. System and method for inverse discrete cosine transform implementation
US5636152A (en) * 1995-04-28 1997-06-03 United Microelectronics Corporation Two-dimensional inverse discrete cosine transform processor

Also Published As

Publication number Publication date
CN1213612C (zh) 2005-08-03
CN1149499C (zh) 2004-05-12
CN1216337C (zh) 2005-08-24
EP0917070B1 (de) 2010-07-14
CN1481170A (zh) 2004-03-10
JP4688988B2 (ja) 2011-05-25
EP0917070A3 (de) 2003-06-18
CN1296852C (zh) 2007-01-24
EP0917070A2 (de) 1999-05-19
ATE474276T1 (de) 2010-07-15
CN1224306A (zh) 1999-07-28
CN1481161A (zh) 2004-03-10
JPH11234673A (ja) 1999-08-27
CN1481171A (zh) 2004-03-10
TW498223B (en) 2002-08-11

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