公开(公告)号：AT468705T

公开(公告)日：2010-06-15

申请号：AT06737895

申请日：2006-03-10

Applicant: QUALCOMM INC

Inventor： SETHI SUMEET ,  OGUZ SEYFULLAH ,  RAVEENDRAN VIJAYALAKSHMI R

IPC: H04N7/54 ,  H04N7/62 ,  H04N19/19 ,  H04N19/65 ,  H04N19/89 ,  H04N19/895

Abstract: A method of video coding that includes encoding resynchronization point information, where the resynchronization point information includes information identifying a location of a resynchronization point within a section of a video bitstream and information for decoding the bitstream following the resynchronization point. Also, a method for decoding digital video that includes receiving an encoded bitstream including resynchronization point information, where the resynchronization point information includes information identifying a location of a resynchronization point and information for decoding the bitstream following the resynchronization point, decoding the received bitstream, and locating the resynchronization point in the bitstream based on the resynchronization point information.

公开(公告)号：ES2371188T3

公开(公告)日：2011-12-28

申请号：ES06804241

申请日：2006-09-27

Applicant: QUALCOMM INC

Inventor： RAVEENDRAN VIJAYALAKSHMI ,  WALKER GORDON ,  TIAN TAO ,  BHAMIDIPATI PHANIKUMAR ,  SHI FANG ,  CHEN PEISONG ,  SUBRAMANIA SITARAMAN ,  OGUZ SEYFULLAH

IPC: H04N19/114 ,  H04N19/117 ,  H04N19/142 ,  H04N19/30 ,  H04N19/40 ,  H04N19/44 ,  H04N19/58 ,  H04N19/63 ,  H04N19/86

Abstract: Un procedimiento de procesamiento de datos multimedia que comprende: la recepción de datos multimedia y la codificación de los datos multimedia (361) en una primera capa de datos codificados y una segunda capa de datos codificados en base al contenido de los datos multimedia, estando configurada la primera capa de datos codificados para ser codificable de modo independiente de la segunda capa de datos codificados y en el que la primera capa de datos se codifica con una calidad menor que la segunda capa de datos, caracterizado porque el procedimiento comprende: la codificación de la primera capa de datos mediante las etapas de: transformación de los coeficientes de error residuales de la primera capa de datos, siendo el error residual la diferencia entre los datos multimedia que se están codificando (361) y el macro bloque de ajuste mejor de un cuadro de referencia temporal; el cálculo de un coeficiente de la primera de capa de datos, C'base, a partir de los coeficientes de error residual transformados, Cbase y la cuantificación del coeficiente de la primera capa de datos, C'base, mediante un primer parámetro de cuantificación, Qb; y la codificación de la segunda capa de datos mediante las etapas de: la transformación de los coeficientes de error residual en la segunda capa de datos, siendo el error residual la diferencia entre los datos multimedia que se están codificando (361) y el macro bloque de ajuste mejor de un cuadro de referencia temporal; el cálculo de un coeficiente de la segunda capa de de datos, C'mej, a partir de los coeficientes de error residual transformados, Cmej y la cuantificación del coeficiente de la segunda capa de datos, C'mej, mediante un segundo parámetro de cuantificación, en el que: - 0 , en caso contrario C'mej = Cmej - Qb -1 (Qb (C'base)) en la que Qb -1 es el parámetro de descuantificación de la primera capa de datos y en el que el primer parámetro de cuantificación se ajusta para ser más alto que el segundo parámetro de cuantificación, de modo que la primera capa de datos codificados se puede decodificar para formar unos datos multimedia que se pueden visualizar si la segunda capa de datos codificada no está disponible y la primera capa de datos codificados y la segunda capa de datos codificados se pueden decodificar en combinación para formar unos datos multimedia que se pueden visualizar si tanto la primera capa de datos codificada como la segunda capa de datos codificada están disponibles.

公开(公告)号：CA2574590C

公开(公告)日：2013-02-19

申请号：CA2574590

申请日：2005-07-20

Applicant: QUALCOMM INC

Inventor： LUO EDWARD ,  SHI FANG ,  OGUZ SEYFULLAH ,  RAVEENDRAN VIJAYALAKSHMI R

IPC: H04N7/26

Abstract: A method for motion vector prediction for a current block, the current block having a set of neighboring blocks that includes blocks that do not have an associated motion vector, is disclosed. The method including deriving a candidate motion vector for each block in the set of neighboring blocks that does not have an associated motion vector; and using the candidate motion vector for each block in the set of neighboring blocks that does not have the associated motion vector to predict a current motion vector for the current block. An apparatus for performing the method is also disclosed.

公开(公告)号：AT524926T

公开(公告)日：2011-09-15

申请号：AT06804241

申请日：2006-09-27

Applicant: QUALCOMM INC

Inventor： RAVEENDRAN VIJAYALAKSHMI ,  WALKER GORDON ,  TIAN TAO ,  BHAMIDIPATI PHANIKUMAR ,  SHI FANG ,  CHEN PEISONG ,  SUBRAMANIA SITARAMAN ,  OGUZ SEYFULLAH

IPC: H04N7/26 ,  H04N5/44 ,  H04N19/89

Abstract: A method of increasing the error resilience of encoded multimedia data, the method comprising obtaining content information of multimedia data, wherein the content information includes content classifications for portions of the multimedia data, each content classification for a portion determined by a texture value associated with spatial complexity of the portion, and a motion value associated with temporal complexity of the portion; and encoding portions of the multimedia data as intra-coded blocks or inter-coded blocks based on the content classification.

公开(公告)号：AT456256T

公开(公告)日：2010-02-15

申请号：AT06737894

申请日：2006-03-10

Applicant: QUALCOMM INC

Inventor： RAVEENDRAN VIJAYALAKSHMI ,  SHI FANG ,  OGUZ SEYFULLAH ,  SETHI SUMEET

IPC: H04N19/895 ,  H04L1/00 ,  H04N19/89

Abstract: A method and apparatus for multi-layer integration for use in error recovery is disclosed. An error is detected in a multimedia data based on a first layer protocol and the detected error in the multimedia data is concealed based on a second layer protocol. In one aspect, the error in a multimedia data is detected based on a communication layer protocol and controlled based on a transport layer protocol. An error distribution of the controlled error is then determined based on a sync layer protocol and the detected error in the multimedia data is concealed based on an application layer protocol. In another aspect, a method and apparatus for multimedia data processing comprises error recovery as well as scalability.; Finally, a method and apparatus as disclosed allows processing of multimedia stream by receiving multiple streams of encoded multimedia data, performing error recovery on an erroneous portion of a stream, and reconstructing the multimedia data from the multiple streams.

公开(公告)号：CA2574590A1

公开(公告)日：2006-02-02

申请号：CA2574590

申请日：2005-07-20

Applicant: QUALCOMM INC

Inventor： LUO EDWARD ,  SHI FANG ,  OGUZ SEYFULLAH ,  RAVEENDRAN VIJAYALAKSHMI R

IPC: H04N7/26

Abstract: A method for motion vector prediction for a current block, the current block having a set of neighboring blocks that includes blocks that do not have an associated motion vector, is disclosed. The method including deriving a candidate motion vector for each block in the set of neighboring blocks that does not have an associated motion vector; and using the candidate motion vector for each block in the set of neighboring blocks that does not have the associated motion vector to predict a current motion vector for the current block. An apparatus for performing the method is also disclosed.

公开(公告)号：WO2006012383A3

公开(公告)日：2006-06-15

申请号：PCT/US2005025812

申请日：2005-07-20

Applicant: QUALCOMM INC ,  LUO EDWARD ,  SHI FANG ,  OGUZ SEYFULLAH ,  RAVEENDRAN VIJAYALAKSHMI R

Inventor： LUO EDWARD ,  SHI FANG ,  OGUZ SEYFULLAH ,  RAVEENDRAN VIJAYALAKSHMI R

IPC: H04N7/26

CPC classification number: H04N5/145 ,  H04N19/40 ,  H04N19/46 ,  H04N19/513 ,  H04N19/52 ,  H04N19/521 ,  H04N19/53 ,  H04N19/59

Abstract: A method for motion vector prediction for a current block, the current block having a set of neighboring blocks that includes blocks that do not have an associated motion vector, is disclosed. The method including deriving a candidate motion vector for each block in the set of neighboring blocks that does not have an associated motion vector; and using the candidate motion vector for each block in the set of neighboring blocks that does not have the associated motion vector to predict a current motion vector for the current block. An apparatus for performing the method is also disclosed.

Abstract translation: 公开了一种用于当前块的运动矢量预测的方法，所述当前块具有包括不具有相关运动矢量的块的一组相邻块。 所述方法包括：导出所述一组相邻块中的不具有相关运动矢量的每个块的候选运动矢量; 以及使用不具有相关运动向量的相邻块集合中的每个块的候选运动向量来预测当前块的当前运动向量。 还公开了用于执行该方法的设备。