MX2014001422A - Codificacion de coeficientes d etransformada apra ocdificaicon de video. - Google Patents

Codificacion de coeficientes d etransformada apra ocdificaicon de video.

Info

Publication number
MX2014001422A
MX2014001422A MX2014001422A MX2014001422A MX2014001422A MX 2014001422 A MX2014001422 A MX 2014001422A MX 2014001422 A MX2014001422 A MX 2014001422A MX 2014001422 A MX2014001422 A MX 2014001422A MX 2014001422 A MX2014001422 A MX 2014001422A
Authority
MX
Mexico
Prior art keywords
coding
transform coefficients
scan order
disclosure
significance map
Prior art date
Application number
MX2014001422A
Other languages
English (en)
Inventor
Marta Karczewicz
Sole Rojals Joel
Laxman Joshi Rajan
Original Assignee
Qualcomm Inc
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
Priority claimed from US13/413,497 external-priority patent/US20120230418A1/en
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of MX2014001422A publication Critical patent/MX2014001422A/es

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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
    • H04N19/102—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
    • H04N19/129—Scanning of coding units, e.g. zig-zag scan of transform coefficients or flexible macroblock ordering [FMO]
    • 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
    • H04N19/157—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
    • H04N19/18—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
    • 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
    • H04N19/184—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
    • 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
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H04N19/436—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation using parallelised computational arrangements
    • 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
    • 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)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

Esta divulgación describe la codificación de coeficientes de transformada asociados con un bloque de datos de video residuales en un proceso de codificación de video; aspectos de esta divulgación incluyen la selección de un orden de escaneo tanto para la codificación del mapa de significancia como para la codificación de nivel, así como la selección de contextos para codificación por entropía consistente con el orden de escaneo seleccionado; esta divulgación propone una armonización del orden de escaneo para codificar el mapa de significancia de los coeficientes de transformada así como codificar los niveles del coeficiente de transformada; se propone que el orden de escaneo para el mapa de significancia debiera ser en la dirección inversa (es decir, de las frecuencias superiores a las frecuencias inferiores); esta divulgación también propone que los coeficientes de transformada sean escaneados en subconjuntos en oposición a sub-bloques fijos; en particular, los coeficientes de transformada son escaneados en un subconjunto que consiste de un número de coeficientes consecutivos de acuerdo con el orden de escaneo.
MX2014001422A 2011-08-05 2012-08-03 Codificacion de coeficientes d etransformada apra ocdificaicon de video. MX2014001422A (es)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201161515711P 2011-08-05 2011-08-05
US13/413,497 US20120230418A1 (en) 2011-03-08 2012-03-06 Coding of transform coefficients for video coding
US13/565,621 US9106913B2 (en) 2011-03-08 2012-08-02 Coding of transform coefficients for video coding
PCT/US2012/049518 WO2013022748A1 (en) 2011-08-05 2012-08-03 Coding of transform coefficients for video coding

Publications (1)

Publication Number Publication Date
MX2014001422A true MX2014001422A (es) 2014-03-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
MX2014001422A MX2014001422A (es) 2011-08-05 2012-08-03 Codificacion de coeficientes d etransformada apra ocdificaicon de video.

Country Status (14)

Country Link
US (1) US9106913B2 (es)
EP (1) EP2740269A1 (es)
JP (1) JP5951772B2 (es)
KR (1) KR101656964B1 (es)
CN (1) CN103718554B (es)
AU (1) AU2012294683B2 (es)
BR (1) BR112014002770B1 (es)
CA (1) CA2844138C (es)
IL (1) IL230364A (es)
MX (1) MX2014001422A (es)
MY (2) MY194171A (es)
RU (1) RU2562381C1 (es)
WO (1) WO2013022748A1 (es)
ZA (1) ZA201401626B (es)

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