DE69029976T2 - Verfahren und Einrichtung zur Bilddatenkompression durch mathematische Transformation - Google Patents

Verfahren und Einrichtung zur Bilddatenkompression durch mathematische Transformation

Info

Publication number
DE69029976T2
DE69029976T2 DE69029976T DE69029976T DE69029976T2 DE 69029976 T2 DE69029976 T2 DE 69029976T2 DE 69029976 T DE69029976 T DE 69029976T DE 69029976 T DE69029976 T DE 69029976T DE 69029976 T2 DE69029976 T2 DE 69029976T2
Authority
DE
Germany
Prior art keywords
image data
data compression
mathematical transformation
mathematical
transformation
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
Application number
DE69029976T
Other languages
English (en)
Other versions
DE69029976D1 (de
Inventor
Christine Guillemot
H Jean-Claude Carlac
Pierre Duhamel
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.)
Telediffusion de France ets Public de Diffusion
Orange SA
Original Assignee
Telediffusion de France ets Public de Diffusion
France Telecom SA
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
Application filed by Telediffusion de France ets Public de Diffusion, France Telecom SA filed Critical Telediffusion de France ets Public de Diffusion
Application granted granted Critical
Publication of DE69029976D1 publication Critical patent/DE69029976D1/de
Publication of DE69029976T2 publication Critical patent/DE69029976T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • 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

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Data Mining & Analysis (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Theoretical Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • Algebra (AREA)
  • Multimedia (AREA)
  • Discrete Mathematics (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Image Processing (AREA)
  • Color Television Systems (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Complex Calculations (AREA)
DE69029976T 1989-04-18 1990-04-17 Verfahren und Einrichtung zur Bilddatenkompression durch mathematische Transformation Expired - Fee Related DE69029976T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8905298A FR2646046B1 (fr) 1989-04-18 1989-04-18 Procede et dispositif de compression de donnees d'image par transformation mathematique a cout reduit de mise en oeuvre, notamment pour la transmission a debit reduit de sequences d'images

Publications (2)

Publication Number Publication Date
DE69029976D1 DE69029976D1 (de) 1997-04-03
DE69029976T2 true DE69029976T2 (de) 1997-10-09

Family

ID=9380973

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69029976T Expired - Fee Related DE69029976T2 (de) 1989-04-18 1990-04-17 Verfahren und Einrichtung zur Bilddatenkompression durch mathematische Transformation

Country Status (5)

Country Link
US (1) US5031038A (de)
EP (1) EP0398830B1 (de)
JP (1) JPH0373689A (de)
DE (1) DE69029976T2 (de)
FR (1) FR2646046B1 (de)

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DE3943880B4 (de) * 1989-04-17 2008-07-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Digitales Codierverfahren
US5268853A (en) * 1989-12-01 1993-12-07 Ricoh Company, Ltd. Orthogonal transformation processor for compressing information
US5359549A (en) * 1989-12-01 1994-10-25 Ricoh Company, Ltd. Orthogonal transformation processor for compressing information
US5107345A (en) * 1990-02-27 1992-04-21 Qualcomm Incorporated Adaptive block size image compression method and system
JP3185214B2 (ja) * 1990-06-12 2001-07-09 日本電気株式会社 改良ｄｃｔの順変換計算装置および逆変換計算装置
US5757973A (en) * 1991-01-11 1998-05-26 Sony Corporation Compression of image data seperated into frequency component data in a two dimensional spatial frequency domain
TW223690B (de) * 1991-02-13 1994-05-11 Ampex
JP2964172B2 (ja) * 1991-03-08 1999-10-18 富士通株式会社 Ｄｃｔマトリクス演算回路
US5258941A (en) * 1991-12-13 1993-11-02 Edward Newberger Apparatus for utilizing a discrete fourier transformer to implement a discrete cosine transformer
WO1993023816A1 (en) * 1992-05-18 1993-11-25 Silicon Engines Inc. System and method for cross correlation with application to video motion vector estimation
CA2094524A1 (en) * 1992-07-30 1994-01-31 Ephraim Feig Digital image processor for color image compression
US5345408A (en) * 1993-04-19 1994-09-06 Gi Corporation Inverse discrete cosine transform processor
US5420942A (en) * 1993-09-21 1995-05-30 Levit; Itzhak Methods and devices for self-correcting video compression
US5467131A (en) * 1993-12-30 1995-11-14 Hewlett-Packard Company Method and apparatus for fast digital signal decoding
US5481487A (en) * 1994-01-28 1996-01-02 Industrial Technology Research Institute Transpose memory for DCT/IDCT circuit
US5831872A (en) * 1995-06-27 1998-11-03 Motorola, Inc. Method and system for compressing a video signal using dynamic frame recovery
US6094453A (en) * 1996-10-11 2000-07-25 Digital Accelerator Corporation Digital data compression with quad-tree coding of header file
KR100239349B1 (ko) * 1996-12-20 2000-01-15 구자홍 역이산 코사인 변환기의 데이타 포멧 변환 회로
AUPO521897A0 (en) * 1997-02-20 1997-04-11 Telstra R & D Management Pty Ltd Invisible digital watermarks
JPH10283343A (ja) * 1997-04-02 1998-10-23 Mitsubishi Electric Corp データ処理方法
US6058215A (en) * 1997-04-30 2000-05-02 Ricoh Company, Ltd. Reversible DCT for lossless-lossy compression
GB2329544B (en) * 1997-09-19 2001-11-21 Motorola Israel Ltd Video codec and method for encoding video frames
US6771264B1 (en) * 1998-08-20 2004-08-03 Apple Computer, Inc. Method and apparatus for performing tangent space lighting and bump mapping in a deferred shading graphics processor
AU5686199A (en) 1998-08-20 2000-03-14 Apple Computer, Inc. Deferred shading graphics pipeline processor
US6460061B1 (en) * 1999-10-29 2002-10-01 Xilinx Inc. 2-dimensional discrete cosine transform using a polynomial transform
US20030212721A1 (en) * 2002-05-07 2003-11-13 Infineon Technologies Aktiengesellschaft Architecture for performing fast fourier transforms and inverse fast fourier transforms
US7599044B2 (en) 2005-06-23 2009-10-06 Apple Inc. Method and apparatus for remotely detecting presence
US7242169B2 (en) * 2005-03-01 2007-07-10 Apple Inc. Method and apparatus for voltage compensation for parasitic impedance
US9298311B2 (en) * 2005-06-23 2016-03-29 Apple Inc. Trackpad sensitivity compensation
US7577930B2 (en) 2005-06-23 2009-08-18 Apple Inc. Method and apparatus for analyzing integrated circuit operations
US7433191B2 (en) * 2005-09-30 2008-10-07 Apple Inc. Thermal contact arrangement
US7598711B2 (en) * 2005-11-23 2009-10-06 Apple Inc. Power source switchover apparatus and method
GB2459339A (en) * 2008-04-25 2009-10-28 Univ Bradford Pipelined 2D fast Fourier transform with three permutation stages, two FFT processor units and a twiddle factor unit.
US8639059B2 (en) * 2010-02-10 2014-01-28 Andrew Batrac Method for lossless digital shearing and rotation with fine angular increments
FR3016764B1 (fr) * 2014-01-17 2016-02-26 Sagemcom Broadband Sas Procede et dispositif de transcodage de donnees video de h.264 vers h.265
CN108982964A (zh) * 2018-07-28 2018-12-11 华中科技大学 一种基于细化傅里叶变换的信号分析方法及设备
KR20220147339A (ko) * 2021-04-27 2022-11-03 성균관대학교산학협력단 이미지의 암호화 방법
CN113973203A (zh) * 2021-10-22 2022-01-25 上海济物光电技术有限公司 一种jpeg图像压缩加速方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4189748A (en) * 1977-08-23 1980-02-19 Northrop Corporation Video bandwidth reduction system using a two-dimensional transformation, and an adaptive filter with error correction
US4302775A (en) * 1978-12-15 1981-11-24 Compression Labs, Inc. Digital video compression system and methods utilizing scene adaptive coding with rate buffer feedback
JPS6297834A (ja) * 1985-10-25 1987-05-07 Kawasaki Heavy Ind Ltd プリプレグ材の積層装置
US4764974A (en) * 1986-09-22 1988-08-16 Perceptics Corporation Apparatus and method for processing an image
IT1207346B (it) * 1987-01-20 1989-05-17 Cselt Centro Studi Lab Telecom Sformata coseno discreta a coeffi circuito per il calcolo della tra cienti quantizzati di campioni di segnale numerico

Also Published As

Publication number Publication date
FR2646046A1 (fr) 1990-10-19
EP0398830A1 (de) 1990-11-22
EP0398830B1 (de) 1997-02-26
DE69029976D1 (de) 1997-04-03
FR2646046B1 (fr) 1995-08-25
US5031038A (en) 1991-07-09
JPH0373689A (ja) 1991-03-28

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Legal Events

Date Code Title Description
8332 No legal effect for de
8370 Indication related to discontinuation of the patent is to be deleted
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee