ES2108760T3 - Dispositivo codificador y descodificador para imagenes con variacion en el tiempo. - Google Patents

Dispositivo codificador y descodificador para imagenes con variacion en el tiempo.

Info

Publication number
ES2108760T3
ES2108760T3 ES92915888T ES92915888T ES2108760T3 ES 2108760 T3 ES2108760 T3 ES 2108760T3 ES 92915888 T ES92915888 T ES 92915888T ES 92915888 T ES92915888 T ES 92915888T ES 2108760 T3 ES2108760 T3 ES 2108760T3
Authority
ES
Spain
Prior art keywords
image
blocks
coding
decoding device
time
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
ES92915888T
Other languages
English (en)
Inventor
Motoki Kato
Yoichi Yagasaki
Jun Yonemitsu
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 Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of ES2108760T3 publication Critical patent/ES2108760T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • 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
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/98—Adaptive-dynamic-range coding [ADRC]
    • 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
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
    • 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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/527—Global motion vector estimation
    • 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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/593—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
    • 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
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
    • 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
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/86—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness
    • 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
    • H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Image Processing (AREA)

Abstract

UN DISPOSITIVO DE CODIFICACION Y DECODIFICACION PARA UNA IMAGEN DE VARIACION TEMPORAL, MEDIANTE EL CUAL SE OBTIENE UNA GRAN CALIDAD DE LA IMAGEN A PARTIR DE UNA CANTIDAD DE INFORMACION MENOR DE LA QUE SE DISPONE EN UN SISTEMA QUE SOLO UTILIZA UNA CODIFICACION DCT. SE PUEDE MEJORAR LA EFICIENCIA DE LA CODIFICACION Y SE REDUCE DISTORSION DE LOS BLOQUES DE UNA IMAGEN COMPUESTA. UNA IMAGEN SE DIVIDE EN VARIOS BLOQUES Y SE CODIFICA CADA UNO DE LOS BLOQUES. EN ESE MOMENTO, UNA CODIFICACION DE TRANSFORMACION DEL COSENO DISCRETA (DCT) Y UNA COMPOSICION PREDICTIVA ENTRE BLOQUES (NTC) SE CONMUTAN ENTRE SI DE MANERA ADECUADA SEGUN LAS CARACTERISTICAS DEL MODELO DE LA IMAGEN. CUANDO SE EJECUTA LA COMPOSICION PREDICTIVA ENTRE BLOQUES, SE TRANSMITEN EL VALOR PREDICTIVO Y LA EXTENSION DE LA CUANTIFICACION DE UN BLOQUE.
ES92915888T 1991-07-19 1992-07-16 Dispositivo codificador y descodificador para imagenes con variacion en el tiempo. Expired - Lifetime ES2108760T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP17983891 1991-07-19
JP1244892 1992-01-27

Publications (1)

Publication Number Publication Date
ES2108760T3 true ES2108760T3 (es) 1998-01-01

Family

ID=26348074

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92915888T Expired - Lifetime ES2108760T3 (es) 1991-07-19 1992-07-16 Dispositivo codificador y descodificador para imagenes con variacion en el tiempo.

Country Status (10)

Country Link
US (1) US5543843A (es)
EP (1) EP0549813B1 (es)
JP (1) JPH05276500A (es)
KR (1) KR930702858A (es)
AT (1) ATE159640T1 (es)
AU (1) AU656215B2 (es)
CA (1) CA2091579A1 (es)
DE (1) DE69222838T2 (es)
ES (1) ES2108760T3 (es)
WO (1) WO1993002528A1 (es)

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FR2719397B1 (fr) * 1994-04-27 1996-07-19 Sgs Thomson Microelectronics Dispositif d'alimentation en pixels d'une série d'opérateurs d'un circuit de compression d'images mobiles.
JP3700195B2 (ja) * 1995-01-10 2005-09-28 ソニー株式会社 復号化装置、再生装置、記録再生装置、画像処理システム、復号化方法、再生方法、記録再生方法及び画像処理方法
JPH08256341A (ja) * 1995-03-17 1996-10-01 Sony Corp 画像信号符号化方法、画像信号符号化装置、画像信号記録媒体、及び画像信号復号化装置
US5812197A (en) * 1995-05-08 1998-09-22 Thomson Consumer Electronics, Inc. System using data correlation for predictive encoding of video image data subject to luminance gradients and motion
SG74566A1 (en) * 1995-08-23 2000-08-22 Sony Corp Encoding/decoding fields of predetermined field polarity apparatus and method
JPH10511532A (ja) * 1995-10-18 1998-11-04 フィリップス エレクトロニクス ネムローゼ フェンノートシャップ ビデオ画像符号化方法
KR100237359B1 (ko) * 1995-10-26 2000-01-15 김영환 모양 적응형 영상신호 부호화 장치 및 방법
US6072909A (en) * 1995-12-13 2000-06-06 Fuji Xerox Co., Ltd. Image coding devise and image decoding devise using with image disassembly
JPH09247671A (ja) * 1996-03-04 1997-09-19 Mitsubishi Electric Corp デジタル画像復号装置
US5701158A (en) * 1996-03-04 1997-12-23 Mitsubishi Denki Kabushiki Kaisha Digital image decoding apparatus
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KR100346728B1 (ko) * 1996-09-21 2002-10-12 삼성전자 주식회사 이산코사인변환의 dc 계수예측방법 및 이를 이용한 데이터 부호화방법
US6904174B1 (en) * 1998-12-11 2005-06-07 Intel Corporation Simplified predictive video encoder
JP3380517B2 (ja) 2000-03-30 2003-02-24 松下電器産業株式会社 特殊再生データ作成装置、及び媒体
JP4337244B2 (ja) * 2000-07-25 2009-09-30 ソニー株式会社 Ｍｐｅｇ画像ストリームのデコード装置およびデコード方法
NO318973B1 (no) * 2003-07-01 2005-05-30 Tandberg Telecom As Fremgangsmate for stoyreduksjon
ITTO20040764A1 (it) * 2004-11-05 2005-02-05 St Microelectronics Srl Procedimento per codificare a blocchi un flusso di dati, in particolare dati video, relativo, relativo dispositivo e prodotto informatico.
US8233535B2 (en) 2005-11-18 2012-07-31 Apple Inc. Region-based processing of predicted pixels
US8780997B2 (en) 2005-11-18 2014-07-15 Apple Inc. Regulation of decode-side processing based on perceptual masking
US8031777B2 (en) 2005-11-18 2011-10-04 Apple Inc. Multipass video encoding and rate control using subsampling of frames
US8295343B2 (en) * 2005-11-18 2012-10-23 Apple Inc. Video bit rate control method
US20070116117A1 (en) * 2005-11-18 2007-05-24 Apple Computer, Inc. Controlling buffer states in video compression coding to enable editing and distributed encoding
US20080225947A1 (en) * 2007-03-13 2008-09-18 Matthias Narroschke Quantization for hybrid video coding
EP2156670A4 (en) * 2007-05-29 2015-10-28 Lg Electronics Inc METHOD AND APPARATUS FOR PROCESSING A VIDEO SIGNAL
JPWO2009063554A1 (ja) * 2007-11-13 2011-03-31 富士通株式会社 符号化装置および復号装置

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Also Published As

Publication number Publication date
AU2330492A (en) 1993-02-23
DE69222838D1 (de) 1997-11-27
EP0549813B1 (en) 1997-10-22
WO1993002528A1 (fr) 1993-02-04
JPH05276500A (ja) 1993-10-22
ATE159640T1 (de) 1997-11-15
KR930702858A (ko) 1993-09-09
EP0549813A4 (en) 1993-10-27
DE69222838T2 (de) 1998-04-02
CA2091579A1 (en) 1993-01-20
EP0549813A1 (en) 1993-07-07
AU656215B2 (en) 1995-01-27
US5543843A (en) 1996-08-06

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