WO2008001012A3 - Dispositif et procede d'encodage de type cabac - Google Patents

Dispositif et procede d'encodage de type cabac Download PDF

Info

Publication number
WO2008001012A3
WO2008001012A3 PCT/FR2007/051543 FR2007051543W WO2008001012A3 WO 2008001012 A3 WO2008001012 A3 WO 2008001012A3 FR 2007051543 W FR2007051543 W FR 2007051543W WO 2008001012 A3 WO2008001012 A3 WO 2008001012A3
Authority
WO
WIPO (PCT)
Prior art keywords
bit
cir
stream
interval
initial
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.)
Ceased
Application number
PCT/FR2007/051543
Other languages
English (en)
Other versions
WO2008001012A2 (fr
Inventor
Tchi Southivong
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.)
Assistance Technique et Etude de Materiels Electroniques ATEME
Original Assignee
Assistance Technique et Etude de Materiels Electroniques ATEME
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 Assistance Technique et Etude de Materiels Electroniques ATEME filed Critical Assistance Technique et Etude de Materiels Electroniques ATEME
Priority to US12/306,556 priority Critical patent/US7834785B2/en
Priority to CA2656125A priority patent/CA2656125C/fr
Priority to EP07803953A priority patent/EP2041877A2/fr
Publication of WO2008001012A2 publication Critical patent/WO2008001012A2/fr
Anticipated expiration legal-status Critical
Publication of WO2008001012A3 publication Critical patent/WO2008001012A3/fr
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/40—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code
    • H03M7/4006—Conversion to or from arithmetic code
    • 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
    • H04N19/90—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
    • H04N19/91—Entropy coding, e.g. variable length coding [VLC] or arithmetic coding

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

L'invention concerne un dispositif et un procédé d'encodage, de type CABAC, d'un flux initial d'informations numériques binaires destinées à générer un flux sortant pour former, après décodage, des images vidéo. De manière connue, le procédé comprend les étapes suivantes : analyse bit à bit des séries successives de bits du flux binaire initial pour en déduire, pour chaque bit, un intervalle représentant la probabilité d'occurrence associée à ce bit, cet intervalle étant défini par sa taille CIR et sa borne inférieure CIL, analyse de cet intervalle pour assurer, si nécessaire, une renormalisation de celui-ci. Selon l'invention, la renormalisation est non itérative et pour chaque bit du flux initial est conforme à la figure annexée dans laquelle : M est la longueur de la séquence S des bits de poids forts communs à CIL et CIR, N est le nombre entier tel que CIR.2N-1 < 0,25 ≤ CIR.2N, BO est le nombre de bits en attente d'insertion.
PCT/FR2007/051543 2006-06-28 2007-06-27 Dispositif et procede d'encodage de type cabac Ceased WO2008001012A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US12/306,556 US7834785B2 (en) 2006-06-28 2007-06-27 CABAC type encoding device and method
CA2656125A CA2656125C (fr) 2006-06-28 2007-06-27 Dispositif et procede d'encodage de type cabac
EP07803953A EP2041877A2 (fr) 2006-06-28 2007-06-27 Dispositif et procede d'encodage de type cabac

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0605818A FR2903269B1 (fr) 2006-06-28 2006-06-28 Dispositif et procede d'encodage de type cabac
FR0605818 2006-06-28

Publications (2)

Publication Number Publication Date
WO2008001012A2 WO2008001012A2 (fr) 2008-01-03
WO2008001012A3 true WO2008001012A3 (fr) 2010-06-17

Family

ID=37908131

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2007/051543 Ceased WO2008001012A2 (fr) 2006-06-28 2007-06-27 Dispositif et procede d'encodage de type cabac

Country Status (5)

Country Link
US (1) US7834785B2 (fr)
EP (1) EP2041877A2 (fr)
CA (1) CA2656125C (fr)
FR (1) FR2903269B1 (fr)
WO (1) WO2008001012A2 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4717780B2 (ja) * 2006-11-01 2011-07-06 キヤノン株式会社 符号化装置及びその制御方法
US9648325B2 (en) 2007-06-30 2017-05-09 Microsoft Technology Licensing, Llc Video decoding implementations for a graphics processing unit
US7982641B1 (en) * 2008-11-06 2011-07-19 Marvell International Ltd. Context-based adaptive binary arithmetic coding engine
JP4936574B2 (ja) * 2011-03-02 2012-05-23 キヤノン株式会社 符号化装置及びその制御方法
JP5815113B2 (ja) * 2011-03-31 2015-11-17 トムソン ライセンシングＴｈｏｍｓｏｎ Ｌｉｃｅｎｓｉｎｇ Ｃａｂａｃ復号化のための技術
CN108028006B (zh) * 2015-07-28 2021-02-02 皇家飞利浦有限公司 基于个人求助按钮的签到服务
CN110739974B (zh) * 2018-07-19 2023-11-10 嘉楠明芯(北京)科技有限公司 数据压缩方法及装置和计算机可读存储介质
US12047575B2 (en) * 2020-12-03 2024-07-23 Intel Corporation Methods, apparatus, and articles of manufacture for multi-symbol equiprobable mode entropy coding

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6952764B2 (en) * 2001-12-31 2005-10-04 Intel Corporation Stopping replay tornadoes
US6825782B2 (en) * 2002-09-20 2004-11-30 Ntt Docomo, Inc. Method and apparatus for arithmetic coding and termination
US7240082B2 (en) * 2003-07-07 2007-07-03 Faraday Technology Corp. Method for processing efficiency in a pipeline architecture

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
ANONYMOUS: "Arithmetic coding", INTERNET ARTICLE, 19 June 2006 (2006-06-19), XP002429701, Retrieved from the Internet <URL:http://en.wikipedia.org/w/index.php?title=Arithmetic_coding&oldid=59363703#Precision_and_renormalization> [retrieved on 20070417] *
DAVID SALOMON: "Data compression", 2004, SPRINGER, XP002429705 *
WIEGAND T: "DRAFT TEXT OF FINAL DRAFT INTERNATIONAL STANDARD FOR ADVANCED VIDEO CODING (ITU-T REC. H.264/ISO/IEC 14496-10 AVC)", ISO/IEC JTC1/SC29/WG11 N5555, PATTAYA,, TH, 31 March 2003 (2003-03-31), pages I - XVI,1, XP001091555 *

Also Published As

Publication number Publication date
FR2903269A1 (fr) 2008-01-04
CA2656125C (fr) 2011-09-27
US7834785B2 (en) 2010-11-16
FR2903269B1 (fr) 2008-10-03
WO2008001012A2 (fr) 2008-01-03
CA2656125A1 (fr) 2008-01-03
US20090322573A1 (en) 2009-12-31
EP2041877A2 (fr) 2009-04-01

Similar Documents

Publication Publication Date Title
WO2008001012A3 (fr) Dispositif et procede d&#39;encodage de type cabac
CN101017574A (zh) 一种适于jpeg码流的哈夫曼解码方法
CN101651834B (zh) 视频数字水印嵌入方法及其装置
JP2010519806A5 (fr)
EP1699137A3 (fr) Dispositif et procédé de codage arithmétique et de décodage arithmétique de signaux numériques
EP1684519A3 (fr) PROCEDE ET SYSTEME pour la livraison de multimedia dans dans un environnement sans fil
RU2008105046A (ru) Эффективное кодирование и декодирование блоков преобразования
MX2009012361A (es) Aparato y metodo para codificar y descodificar señales.
RU2009134515A (ru) Описание характеристик агрегированных блоков медиаданных с обратной совместимостью
WO2010136775A3 (fr) Méthode et appareil d&#39;acquisition de données de spectromètre de masse
RU2015129532A (ru) Способ, система и устройство связи для оптической сетевой системы
CN101729198B (zh) 一种编解码方法、装置及系统
KR100969748B1 (ko) 직렬 통신 시스템에서 직렬 데이터의 송수신 방법 및 장치와 이를 위한 직렬 통신 시스템
WO2008024181A3 (fr) Procédé et appareil pour transférer des données numériques entre des circuits
CN104980749B (zh) 算术编码的解码装置及方法
WO2004068858A3 (fr) Procede et systeme adaptatif et progressif de distribution securisee d&#39;images fixes codees en ondelettes
WO2007080285A3 (fr) Dispositif et procede d’encodage de type cabac
EP1906536A3 (fr) Turbocode en boucle pour nombre arbitraire de bits d&#39;information
CN104506966B (zh) 音视频数据的解码方法及装置
CN202587238U (zh) Ts流字幕插入系统
WO2004045199A3 (fr) Systeme et procede de traitement de symboles integres dans une video numerique
CN1742334A (zh) 无损数据嵌入
WO2007108924A3 (fr) Procédé de synchronisation de flux binaire codé ou chiffré
CN101500162B (zh) 信息嵌入、提取方法及装置
US8327027B2 (en) Data compression system and method

Legal Events

Date Code Title Description
ENP Entry into the national phase

Ref document number: 2656125

Country of ref document: CA

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2007803953

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: RU

WWE Wipo information: entry into national phase

Ref document number: 12306556

Country of ref document: US