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1. MX350507 - CONCEPTO DE CODIFICACION PERMITIENDO EL PROCESAMIENTO PARALELO, DEMULTIPLEXOR DE TRANSPORTE Y TREN DE BITS DE VIDEO.

Office
Mexico
Application Number 2014008695
Application Date 17.07.2014
Publication Number 350507
Publication Date 21.11.2014
Grant Number 350507
Grant Date 08.09.2017
Publication Kind B
IPC
H04N 19/107
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
102characterised by the element, parameter or selection affected or controlled by the adaptive coding
103Selection of coding mode or of prediction mode
107between spatial and temporal predictive coding, e.g. picture refresh
CPC
H04N 19/13
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
102characterised by the element, parameter or selection affected or controlled by the adaptive coding
13Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
H04N 19/436
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
42characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
436using parallelised computational arrangements
H04N 19/91
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
90using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
91Entropy coding, e.g. variable length coding [VLC] or arithmetic coding
H04N 19/65
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
65using error resilience
H04N 19/107
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
102characterised by the element, parameter or selection affected or controlled by the adaptive coding
103Selection of coding mode or of prediction mode
107between spatial and temporal predictive coding, e.g. picture refresh
H04N 19/169
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
19Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
10using adaptive coding
169characterised 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
Applicants FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
Inventors MARPE, Detlev
GEORGE, Valeri
KIRCHHOFFER, Heiner
HENKEL, Anastasia
SCHIERL, Thomas
GRÜNEBERG, Karsten
Priority Data 61/588,849 20.01.2012 US
Title
(EN) CONCEPTO DE CODIFICACION PERMITIENDO EL PROCESAMIENTO PARALELO, DEMULTIPLEXOR DE TRANSPORTE Y TREN DE BITS DE VIDEO.
(ES) CONCEPTO DE CODIFICACION PERMITIENDO EL PROCESAMIENTO PARALELO, DEMULTIPLEXOR DE TRANSPORTE Y TREN DE BITS DE VIDEO.
Abstract
(EN) A raw byte sequence payload describing a picture in slices, WPP substreams or tiles and coded using context-adaptive binary arithmetic coding is subdivided or chopped into tranches with continuing the context-adaptive binary arithmetic coding probability adaptation across tranche boundaries. By this measure, tranche boundaries additionally introduced within slices, WPP substreams or tiles do not lead to a reduction in the entropy coding efficiency of these elements. On the other hand, however, the tranches are smaller than the original slices, WPP substreams or tiles and accordingly they may be transmitted earlier, i.e. with lower delay, than the un-chopped original entities, i.e. slices, WPP substreams or tiles. In accordance with another aspect, which is combinable with the first aspect, substream marker NAL units are used within a sequence of NAL units of a video bitstream in order to enable a transport demultiplexer to assign data of slices within NAL units to the corresponding substreams or tiles so as to be able to, in parallel, serve a multithreaded decoder with the corresponding substreams or tiles.
(ES) Una carga útil de secuencias de bytes en bruto describiendo una imagen en los sectores, los subtrenes o las losas del WPP, y codificada usando la codificación aritmética binaria adaptiva basada en el contexto, es subdividida o cortada en porciones, con la continuación de la adaptación de la probabilidad de la codificación aritmética binaria adaptiva basada en el contexto, a través de los límites de las porciones. Mediante esta medida, los límites de las porciones introducidos adicionalmente dentro de los sectores, los subtrenes o las losas del WPP, no conducen a una reducción en la eficiencia de la codificación entrópica de estos elementos. Por el otro lado, sin embargo, las porciones son más pequeñas que los sectores originales, los subtrenes o las losas del WPP y, en consecuencia, ella puede ser transmitidas más temprano, por ejemplo, con retraso más bajo, que las entidades originales no cortadas, por ejemplo, los sectores, los subtrenes o las losas del WPP. De acuerdo con otro aspecto, el cual se puede combinar con el primer aspecto, las unidades de la NAL de los marcadores de subtrenes son usadas dentro de una secuencia de unidades de la NAL de un tren de bits de vídeo, con el fin de permitir a un demultiplexor de transporte de asignar los datos de los sectores dentro de las unidades de la NAL, con los correspondientes subtrenes o las losas, así como para ser capaz de, en paralelo, servir a un decodificador multihilos con los correspondientes subtrenes o losas.
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