MX2011013579A - Aparato y metodo de codificacion aritmetica a base de contexto y aparato y metodo de decodificacion aritmetica a base de contexto. - Google Patents

Aparato y metodo de codificacion aritmetica a base de contexto y aparato y metodo de decodificacion aritmetica a base de contexto.

Info

Publication number
MX2011013579A
MX2011013579A MX2011013579A MX2011013579A MX2011013579A MX 2011013579 A MX2011013579 A MX 2011013579A MX 2011013579 A MX2011013579 A MX 2011013579A MX 2011013579 A MX2011013579 A MX 2011013579A MX 2011013579 A MX2011013579 A MX 2011013579A
Authority
MX
Mexico
Prior art keywords
context
based arithmetic
decoding apparatus
msb
arithmetic decoding
Prior art date
Application number
MX2011013579A
Other languages
English (en)
Inventor
Eun Mi Oh
Jung-Hoe Kim
Ki Hyun Choo
Original Assignee
Samsung Electronics Co Ltd
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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of MX2011013579A publication Critical patent/MX2011013579A/es

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
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/0017—Lossless audio signal coding; Perfect reconstruction of coded audio signal by transmission of coding error
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/002—Dynamic bit allocation
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding
    • 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
    • H03M7/4012—Binary arithmetic codes
    • 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
    • H03M7/4012—Binary arithmetic codes
    • H03M7/4018—Context adapative binary arithmetic codes [CABAC]

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Linguistics (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Mathematical Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

Se describen un aparato y un método de codificación aritmética a base de contexto y un aparato y un método de decodificación aritmética a base de contexto. El aparato de decodificación aritmética a base de contexto puede determinar un contexto de una tupla N actual que se va a decodificar, determinar un contexto de Bit Muy Significativo (MSB) correspondiente a un símbolo MSB de la tupla N actual, y determinar un modelo de probabilidad utilizando el contexto de la tupla N y el contexto MSB. Subsecuentemente, el aparato de decodificación aritmética a base de contexto puede realizar una decodificación en un MSB con base en el modelo de probabilidad determinado, y realizar una decodificación en un Bit Menos Significativo (LSB) con base en una profundidad de bit del LSB derivado de un procedimiento para decodificación en un código de escape.
MX2011013579A 2009-06-19 2010-06-18 Aparato y metodo de codificacion aritmetica a base de contexto y aparato y metodo de decodificacion aritmetica a base de contexto. MX2011013579A (es)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
KR20090055113 2009-06-19
KR20090056301 2009-06-24
KR1020090100457A KR20100136890A (ko) 2009-06-19 2009-10-21 컨텍스트 기반의 산술 부호화 장치 및 방법과 산술 복호화 장치 및 방법
KR1020090122733A KR20100136896A (ko) 2009-06-19 2009-12-10 컨텍스트 기반의 산술 부호화 장치 및 방법과 산술 복호화 장치 및 방법
KR1020100000281A KR20100136898A (ko) 2009-06-19 2010-01-04 컨텍스트 기반의 산술 부호화 장치 및 방법과 산술 복호화 장치 및 방법
KR1020100000643A KR101719735B1 (ko) 2009-06-19 2010-01-05 컨텍스트 기반의 산술 부호화 장치 및 방법과 산술 복호화 장치 및 방법
PCT/KR2010/003975 WO2010147436A2 (en) 2009-06-19 2010-06-18 Context-based arithmetic encoding apparatus and method and context-based arithmetic decoding apparatus and method

Publications (1)

Publication Number Publication Date
MX2011013579A true MX2011013579A (es) 2012-02-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
MX2011013579A MX2011013579A (es) 2009-06-19 2010-06-18 Aparato y metodo de codificacion aritmetica a base de contexto y aparato y metodo de decodificacion aritmetica a base de contexto.

Country Status (10)

Country Link
US (3) US9171550B2 (es)
EP (3) EP2443750A4 (es)
JP (1) JP5635603B2 (es)
KR (5) KR20100136890A (es)
CN (3) CN102460975B (es)
BR (2) BRPI1015554B1 (es)
CA (2) CA2765863C (es)
MX (1) MX2011013579A (es)
RU (2) RU2493652C2 (es)
WO (1) WO2010147436A2 (es)

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Publication number Publication date
CN105427867B (zh) 2019-07-19
BR122020024930B1 (pt) 2021-07-27
KR20100136899A (ko) 2010-12-29
US9959879B2 (en) 2018-05-01
EP3843279A1 (en) 2021-06-30
EP2443750A2 (en) 2012-04-25
KR101882948B1 (ko) 2018-07-30
CN105427867A (zh) 2016-03-23
US20120221325A1 (en) 2012-08-30
BRPI1015554A2 (pt) 2020-08-18
US20160049160A1 (en) 2016-02-18
EP3843278A1 (en) 2021-06-30
US20100324912A1 (en) 2010-12-23
CN105491378B (zh) 2019-03-15
RU2649288C2 (ru) 2018-03-30
EP2443750A4 (en) 2015-04-29
KR20170035855A (ko) 2017-03-31
KR20100136896A (ko) 2010-12-29
WO2010147436A2 (en) 2010-12-23
BRPI1015554B1 (pt) 2021-08-10
KR101719735B1 (ko) 2017-03-27
JP5635603B2 (ja) 2014-12-03
CA2923285C (en) 2018-05-29
US9171550B2 (en) 2015-10-27
CA2765863C (en) 2016-05-24
CA2765863A1 (en) 2010-12-23
KR20100136898A (ko) 2010-12-29
RU2011151607A (ru) 2013-06-27
CN105491378A (zh) 2016-04-13
RU2493652C2 (ru) 2013-09-20
CN102460975A (zh) 2012-05-16
US8412533B2 (en) 2013-04-02
CN102460975B (zh) 2016-02-17
CA2923285A1 (en) 2010-12-23
WO2010147436A3 (en) 2011-03-03
RU2013129559A (ru) 2015-01-10
JP2012531086A (ja) 2012-12-06
KR20100136890A (ko) 2010-12-29

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