WO2003005730A1 - Procede de codage d'image et dispositif de codage d'image - Google Patents

Procede de codage d'image et dispositif de codage d'image Download PDF

Info

Publication number
WO2003005730A1
WO2003005730A1 PCT/JP2002/006610 JP0206610W WO03005730A1 WO 2003005730 A1 WO2003005730 A1 WO 2003005730A1 JP 0206610 W JP0206610 W JP 0206610W WO 03005730 A1 WO03005730 A1 WO 03005730A1
Authority
WO
WIPO (PCT)
Prior art keywords
image
encoding
image encoding
bit rate
screen
Prior art date
Application number
PCT/JP2002/006610
Other languages
English (en)
Japanese (ja)
Inventor
Naoki Morimoto
Makoto Yamada
Original Assignee
Sony Corporation
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 Corporation filed Critical Sony Corporation
Publication of WO2003005730A1 publication Critical patent/WO2003005730A1/fr

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
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/152—Data rate or code amount at the encoder output by measuring the fullness of the transmission buffer
    • 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
    • H04N19/115—Selection of the code volume for a coding unit prior to 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
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/136—Incoming video signal characteristics or properties
    • H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
    • 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
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/136—Incoming video signal characteristics or properties
    • H04N19/14—Coding unit complexity, e.g. amount of activity or edge presence 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
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/149—Data rate or code amount at the encoder output by estimating the code amount by means of a model, e.g. mathematical model or statistical model
    • 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
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/172—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a picture, frame or field

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Television Signal Processing For Recording (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

L'invention concerne un procédé de codage d'image et un dispositif de codage d'image permettant d'améliorer la qualité de la reproduction d'image par une variation adaptative de la quantité de bits attribuée lors du codage de l'image en fonction de la caractéristique de l'image. Chaque image d'un groupe d'images est codé avec un débit binaire variable, au moyen d'un codage écran ou d'un codage prédictif. Le débit binaire du codage écran est calculé en fonction des caractéristiques de l'image.
PCT/JP2002/006610 2001-07-06 2002-06-28 Procede de codage d'image et dispositif de codage d'image WO2003005730A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001-206092 2001-07-06
JP2001206092A JP2003023637A (ja) 2001-07-06 2001-07-06 画像符号化方法および画像符号化装置

Publications (1)

Publication Number Publication Date
WO2003005730A1 true WO2003005730A1 (fr) 2003-01-16

Family

ID=19042282

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2002/006610 WO2003005730A1 (fr) 2001-07-06 2002-06-28 Procede de codage d'image et dispositif de codage d'image

Country Status (2)

Country Link
JP (1) JP2003023637A (fr)
WO (1) WO2003005730A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7195588B2 (en) 2004-03-01 2007-03-27 Olympus Corporation Endoscope image pick-up apparatus

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4617644B2 (ja) 2003-07-18 2011-01-26 ソニー株式会社 符号化装置及び方法
WO2005084520A1 (fr) * 2004-03-04 2005-09-15 Olympus Corporation Dispositif de detection d’image endoscopique
US8634458B2 (en) 2005-02-23 2014-01-21 Canon Kabushiki Kaisha Image processing apparatus
JP4251650B2 (ja) 2005-03-28 2009-04-08 株式会社カシオ日立モバイルコミュニケーションズ 画像処理装置及びプログラム
JP4794987B2 (ja) * 2005-11-09 2011-10-19 キヤノン株式会社 映像信号処理装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0646270A (ja) * 1992-07-21 1994-02-18 Matsushita Electric Ind Co Ltd 画像符号化方法及び画像符号化装置
JPH114444A (ja) * 1997-06-11 1999-01-06 Sony Corp 画像符号化装置および方法
WO1999003282A1 (fr) * 1997-07-08 1999-01-21 Sony Corporation Codeur, procede de codage, emetteur et support d'enregistrement de donnees video
JP2000287210A (ja) * 1999-03-31 2000-10-13 Nec Ic Microcomput Syst Ltd 画像圧縮方法及び装置
JP2001028753A (ja) * 1999-07-13 2001-01-30 Victor Co Of Japan Ltd 動画像符号化装置及びその方法
JP2001084698A (ja) * 1999-09-09 2001-03-30 Kenwood Corp ディジタル記録システムおよび方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0646270A (ja) * 1992-07-21 1994-02-18 Matsushita Electric Ind Co Ltd 画像符号化方法及び画像符号化装置
JPH114444A (ja) * 1997-06-11 1999-01-06 Sony Corp 画像符号化装置および方法
WO1999003282A1 (fr) * 1997-07-08 1999-01-21 Sony Corporation Codeur, procede de codage, emetteur et support d'enregistrement de donnees video
JP2000287210A (ja) * 1999-03-31 2000-10-13 Nec Ic Microcomput Syst Ltd 画像圧縮方法及び装置
JP2001028753A (ja) * 1999-07-13 2001-01-30 Victor Co Of Japan Ltd 動画像符号化装置及びその方法
JP2001084698A (ja) * 1999-09-09 2001-03-30 Kenwood Corp ディジタル記録システムおよび方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7195588B2 (en) 2004-03-01 2007-03-27 Olympus Corporation Endoscope image pick-up apparatus

Also Published As

Publication number Publication date
JP2003023637A (ja) 2003-01-24

Similar Documents

Publication Publication Date Title
EP0833522A3 (fr) Méthode et appareil de codage de signaux vidéo utilisant une technique de quantification adaptative
WO2007008012A3 (fr) Dispositif et procédé de traitement d'un signal audio
WO2005036846A8 (fr) Codage a repetition pour systeme sans fil
WO2003056839A8 (fr) Codage video
CN101171844A (zh) 视频速率控制中的上下文自适应带宽调整
CA2146048A1 (fr) Codeur video adaptatif a affectation dynamique des bits
WO2003047264A3 (fr) Procede et systeme pour reguler le debit pendant le transcodage video
WO2005020210A3 (fr) Procede et appareil pour codage audio a debit binaire variable adaptatif
WO2002056599A3 (fr) Procede et appareil permettant de fournir une extensibilite a grains fins en mode predicitif
WO2008042259A3 (fr) PROCÉDÉ D'ATTRIBUTION DE BITS AU NIVEAU DE LA TRAME DU ρ-DOMAINE POUR UN CONTRÔLE EFFECTIF DU DÉBIT ET POUR OPTIMISER LA QUALITÉ DU CODAGE VIDÉO
WO2007140429A3 (fr) Adaptation de débit vidéo à des conditions de liaison inverse
WO2003100989A3 (fr) Procede et appareil de signalisation repartie pour la commande de vitesse de liaison montante
EP1313322A3 (fr) Procédé et système de régulation de débit en fontion de l' objet dans un système de codage
EP1315380A3 (fr) Procédé et système de régulation de débit en fontion de l' objet dans un système de codage
WO2003041326A3 (fr) Procede et appareil de codage d'images animees
AU2002356070A1 (en) Video encoding method
WO2002054772A3 (fr) Procede d'execution de commande de vitesse de codage video utilisant un budget de bits
WO2007047037A3 (fr) Egaliseur adaptatif destine a un signal vocal code
WO2005011255A3 (fr) Commande de vitesse video multipasse de façon a correspondre aux contraintes de canal a fenetre coulissante
WO2005086981A3 (fr) Procedes et dispositifs pour compresser des donnees d'image numeriques avec prediction de mouvement
AU2001260877A1 (en) Transmission over packet switched networks
WO2002071670A3 (fr) Procede et systeme de manipulation de signaux optiques
WO2002065459A3 (fr) Procede et appareil permettant de reduire la generation de paquet indesirable
WO2003005730A1 (fr) Procede de codage d'image et dispositif de codage d'image
AU2003239286A1 (en) A method and system for optimizing image sharpness during coding

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): CN KR US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase