CR20160423A - Codificación de nivel de coeficiente en un proceso de codificación de video - Google Patents

Codificación de nivel de coeficiente en un proceso de codificación de video

Info

Publication number
CR20160423A
CR20160423A CR20160423A CR20160423A CR20160423A CR 20160423 A CR20160423 A CR 20160423A CR 20160423 A CR20160423 A CR 20160423A CR 20160423 A CR20160423 A CR 20160423A CR 20160423 A CR20160423 A CR 20160423A
Authority
CR
Costa Rica
Prior art keywords
coding
code word
golomb
suffix
prefix
Prior art date
Application number
CR20160423A
Other languages
English (en)
Inventor
Marta Karczewicz
Rajan Laxman; Joshi
Original Assignee
Quallcomm Incorporated
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 Quallcomm Incorporated filed Critical Quallcomm Incorporated
Publication of CR20160423A publication Critical patent/CR20160423A/es

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
    • H04N19/169—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
    • H04N19/18—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 a set of transform coefficients
    • 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
    • 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
    • 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
    • H04N19/102—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
    • H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
    • 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
    • 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
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • 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
    • H04N19/176—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 block, e.g. a macroblock
    • 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
    • H04N19/1887—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 a variable length codeword
    • 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
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • 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
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards

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)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computing Systems (AREA)

Abstract

Un dispositivo para codificar datos de video incluye una memoria configurada para almacenar datos de video, y al menos un procesador configurado para: determinar un número máximo de bits para usar cuando se codifica un elemento de sintaxis que indica los valores absolutos de coeficientes de transformación de una unidad de codificación de los datos de video, determinar un número máximo de bits del sufijo para usar que codifican una palabra código del sufijo por codificación de Golomb-Rice/Golomb exponencial del elemento de sintaxis, determinar un número máximo de bits del prefijo para usar cuando se codifica una palabra código del prefijo por codificación de Golomb-Rice/Golomb exponencial unario del elemento de sintaxis, determinar los valores absolutos de coeficientes de transformación para la unidad de codificación, codificar una palabra código del prefijo para uno de los valores absolutos, y codificar una palabra código del sufijo para uno de los valores absolutos, y codificar la unidad de codificación sobre la base de la palabra código del prefijo y la palabra código del sufijo.
CR20160423A 2014-03-14 2015-03-13 Codificación de nivel de coeficiente en un proceso de codificación de video CR20160423A (es)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201461953659P 2014-03-14 2014-03-14
US201461954404P 2014-03-17 2014-03-17
US14/656,071 US9930348B2 (en) 2014-03-14 2015-03-12 Coefficient level coding in a video coding process
PCT/US2015/020462 WO2015138911A1 (en) 2014-03-14 2015-03-13 Coefficient level coding in a video coding process

Publications (1)

Publication Number Publication Date
CR20160423A true CR20160423A (es) 2016-12-20

Family

ID=54070437

Family Applications (1)

Application Number Title Priority Date Filing Date
CR20160423A CR20160423A (es) 2014-03-14 2015-03-13 Codificación de nivel de coeficiente en un proceso de codificación de video

Country Status (13)

Country Link
US (1) US9930348B2 (es)
EP (1) EP3117525B1 (es)
JP (1) JP6527877B2 (es)
KR (1) KR102352638B1 (es)
CN (1) CN106105040B (es)
CR (1) CR20160423A (es)
DO (1) DOP2016000246A (es)
GT (1) GT201600184A (es)
MX (1) MX363891B (es)
NI (1) NI201600135A (es)
SV (1) SV2016005283A (es)
TW (1) TWI666916B (es)
WO (1) WO2015138911A1 (es)

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Also Published As

Publication number Publication date
MX2016011599A (es) 2016-12-09
JP2017514349A (ja) 2017-06-01
MX363891B (es) 2019-04-05
TW201547256A (zh) 2015-12-16
KR102352638B1 (ko) 2022-01-17
NI201600135A (es) 2016-11-18
WO2015138911A1 (en) 2015-09-17
US20150264362A1 (en) 2015-09-17
DOP2016000246A (es) 2016-12-30
JP6527877B2 (ja) 2019-06-05
TWI666916B (zh) 2019-07-21
EP3117525B1 (en) 2022-08-17
CN106105040B (zh) 2019-11-19
GT201600184A (es) 2018-11-27
SV2016005283A (es) 2017-04-24
CN106105040A (zh) 2016-11-09
US9930348B2 (en) 2018-03-27
EP3117525A1 (en) 2017-01-18
KR20160133509A (ko) 2016-11-22

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