MX339998B - Metodo de actualizacion de parametro de codificacion y decodificacion de entropia de nivel de coeficiente de conversion, y dispositivo de codificacion de entropia y dispositivo de decodificacion de entropia de nivel de coeficiente de conversion que utilizan el mismo. - Google Patents

Metodo de actualizacion de parametro de codificacion y decodificacion de entropia de nivel de coeficiente de conversion, y dispositivo de codificacion de entropia y dispositivo de decodificacion de entropia de nivel de coeficiente de conversion que utilizan el mismo.

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Publication number
MX339998B
MX339998B MX2015016231A MX2015016231A MX339998B MX 339998 B MX339998 B MX 339998B MX 2015016231 A MX2015016231 A MX 2015016231A MX 2015016231 A MX2015016231 A MX 2015016231A MX 339998 B MX339998 B MX 339998B
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MX
Mexico
Prior art keywords
parameter
previous
conversion coefficient
coefficient level
updated
Prior art date
Application number
MX2015016231A
Other languages
English (en)
Inventor
Kim Chan-Yul
Park Jeong-Hoon
Kim Jae-Hyun
Original Assignee
Samsung Electronics Co Ltd
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Publication date
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of MX339998B publication Critical patent/MX339998B/es

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
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    • 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
    • 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
    • H03M7/4031—Fixed length to variable length coding
    • H03M7/4037—Prefix coding
    • H03M7/4043—Adaptive prefix coding
    • H03M7/4068—Parameterized codes
    • H03M7/4075—Golomb codes
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    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
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    • H04N19/115—Selection of the code volume for a coding unit prior to coding
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    • 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
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    • H04N19/463—Embedding additional information in the video signal during the compression process by compressing encoding parameters before transmission
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    • 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
    • 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
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    • H03M7/4018—Context adapative binary arithmetic codes [CABAC]
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    • 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
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
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    • H04N19/184—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 bits, e.g. of the compressed video stream
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    • H04N19/96—Tree coding, e.g. quad-tree coding

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • Computing Systems (AREA)
  • Probability & Statistics with Applications (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Error Detection And Correction (AREA)

Abstract

Es descrito un método de actualización de parámetro que es utilizado para la codificación y decodificación de entropía de una conversión. Un elemento de sintaxis que indica un nivel de coeficiente de conversión es binarizado al utilizar un parámetro. El parámetro es actualizado o mantenido en función del resultado obtenido comparando el tamaño del coeficiente previo de conversión con un cierto umbral obtenido en función del parámetro previo utilizado para la binarización inversa del elemento de sintaxis de nivel de coeficiente de conversión previa. El cierto umbral es establecido para tener un valor proporcional al parámetro previo y si el parámetro previo es actualizado, el parámetro actualizado tiene un valor que se incrementa, en forma gradual, en comparación con el parámetro previo.
MX2015016231A 2012-04-15 2014-10-15 Metodo de actualizacion de parametro de codificacion y decodificacion de entropia de nivel de coeficiente de conversion, y dispositivo de codificacion de entropia y dispositivo de decodificacion de entropia de nivel de coeficiente de conversion que utilizan el mismo. MX339998B (es)

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US201261624358P 2012-04-15 2012-04-15

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MX339998B true MX339998B (es) 2016-06-21

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MX2017012322A MX364043B (es) 2012-04-15 2013-04-15 Método de actualización de parámetro de codificación y decodificación de entropía de nivel de coeficiente de conversión, y dispositivo de codificación de entropía y dispositivo de decodificación de entropía de nivel de coeficiente de conversión que utilizan el mismo.
MX2016007913A MX351023B (es) 2012-04-15 2013-04-15 Método de actualización de parámetro de codificación y decodificación de entropía de nivel de coeficiente de conversión, y dispositivo de codificación de entropía y dispositivo de decodificación de entropía de nivel de coeficiente de conversión que utilizan el mismo.
MX2014012448A MX2014012448A (es) 2012-04-15 2013-04-15 Metodo de actualizacion de parametro de codificacion y decodificacion de entropia de nivel de coeficiente de conversion, y dispositivo de codificacion de entropia y dispositivo de decodificacion de entropia de nivel de coeficiente de conversion que utilizan el mismo.
MX2015016231A MX339998B (es) 2012-04-15 2014-10-15 Metodo de actualizacion de parametro de codificacion y decodificacion de entropia de nivel de coeficiente de conversion, y dispositivo de codificacion de entropia y dispositivo de decodificacion de entropia de nivel de coeficiente de conversion que utilizan el mismo.

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MX2017012322A MX364043B (es) 2012-04-15 2013-04-15 Método de actualización de parámetro de codificación y decodificación de entropía de nivel de coeficiente de conversión, y dispositivo de codificación de entropía y dispositivo de decodificación de entropía de nivel de coeficiente de conversión que utilizan el mismo.
MX2016007913A MX351023B (es) 2012-04-15 2013-04-15 Método de actualización de parámetro de codificación y decodificación de entropía de nivel de coeficiente de conversión, y dispositivo de codificación de entropía y dispositivo de decodificación de entropía de nivel de coeficiente de conversión que utilizan el mismo.
MX2014012448A MX2014012448A (es) 2012-04-15 2013-04-15 Metodo de actualizacion de parametro de codificacion y decodificacion de entropia de nivel de coeficiente de conversion, y dispositivo de codificacion de entropia y dispositivo de decodificacion de entropia de nivel de coeficiente de conversion que utilizan el mismo.

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US (7) US9277242B2 (es)
EP (5) EP3637621B1 (es)
KR (7) KR101477621B1 (es)
CN (7) CN104869423B (es)
AU (4) AU2013250108B2 (es)
BR (2) BR112014025686B1 (es)
CA (2) CA2870531C (es)
CY (1) CY1120738T1 (es)
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ES (4) ES2967625T3 (es)
HR (1) HRP20181467T1 (es)
HU (4) HUE041710T2 (es)
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MX (4) MX364043B (es)
MY (4) MY185273A (es)
PH (5) PH12014502262B1 (es)
PL (4) PL3416292T3 (es)
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SI (1) SI2840789T1 (es)
TW (3) TWI640191B (es)
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