公开(公告)号：BRPI0607627A2

公开(公告)日：2009-09-22

申请号：BRPI0607627

申请日：2006-03-10

Applicant: QUALCOMM INC

Inventor： RAVEENDRAN VIJAYALAKSHMI R ,  SHI FANG ,  OGUZ SEYFULLAH HALIT ,  SETHI SUMEET SINGH ,  CHEN PEISONG

IPC: H04N19/895 ,  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：NO20075132A

公开(公告)日：2007-12-10

申请号：NO20075132

申请日：2007-10-09

Applicant: QUALCOMM INC

Inventor： CHEN PEISONG

IPC: H04N7/26

CPC classification number: H04N19/19 ,  H04N19/103 ,  H04N19/124 ,  H04N19/147 ,  H04N19/176 ,  H04N19/61

公开(公告)号：MX2007011087A

公开(公告)日：2007-11-14

申请号：MX2007011087

申请日：2006-03-10

Applicant: QUALCOMM INC

Inventor： RAVEENDRAN VIJAYALAKSHMI R ,  CHEN PEISONG

IPC: H04N7/26 ,  H04N7/50

Abstract: Algunas modalidades comprenden un metodo para decodificar una corriente de bits de video que incluye recibir una primera capa de datos y una segunda capa de datos, combinar los datos de la primera capa recibida y los datos de la segunda capa recibida, y decodificar los datos combinados; tambien, un metodo de codificacion de video que incluye seleccionar datos para codificar en una primera capa y una segunda capa a fin de permitir la decodificacion de los datos en una capa combinada sencilla, y codificar los datos seleccionados en la primera capa y en la segunda capa codificando un coeficiente en la primera capa y codificando un refinamiento diferencial al coeficiente de la primera capa en la segunda capa; una reduccion del numero de pasos de des-cuantificacion a uno se logra para soportar des-cuantificacion canalizada en el nucleo de hardware.

公开(公告)号：NO20075125L

公开(公告)日：2007-10-24

申请号：NO20075125

申请日：2007-10-09

Applicant: QUALCOMM INC

Inventor： RAVEENDRAN VIJAYALAKSHMI R ,  CHEN PEISONG

IPC: H04N7/50 ,  H04N7/26

Abstract: Some embodiments comprise a method of decoding a video bitstream that include receiving a first layer of data and a second layer of data, combining the received first layer data and the received second layer data, and decoding the combined data. Also, a method of video encoding that includes selecting data for encoding in a first layer and a second layer so as to allow decoding of the data in a single combined layer, and encoding the selected data in the first layer and in the second layer by encoding a coefficient in the first layer and encoding a differential refinement to the first layer coefficient in the second layer.

公开(公告)号：AR055187A1

公开(公告)日：2007-08-08

申请号：ARP060104249

申请日：2006-09-27

Applicant: QUALCOMM INC

Inventor： CHEN PEISONG ,  RAVEENDRAN VIJAYALAKSHMI R ,  SHI FANG

IPC: H04N7/00

Abstract: Técnicas de interpolacion de cuadros dentro de un esquema de codificacion de transformada unidireccional. La interpolacion de cuadros puede utilizarse para generar uno o más cuadros interpolados entre dos cuadros codificados sucesivos de baja frecuencia de acuerdo con un esquema de codificacion de transformada unidireccional. Tal interpolacion puede ser util para aumentar la velocidad de cuadro de una secuencia multimedia que es codificado vía transformadas unidireccionales. Además, las técnicas pueden utilizarse para interpolar cuadros extraviados, por ejemplo, que se pueden extraviar durante transmisiones inalámbricas.

公开(公告)号：CA2623929A1

公开(公告)日：2007-04-05

申请号：CA2623929

申请日：2006-09-27

Applicant: QUALCOMM INC

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

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

Abstract: Apparatus and methods of using content information for encoding multimedia data are described. A method of processing multimedia data includes classifying content of multimedia data, and encoding the multimedia data in a first data group and in a second data group based on the content classification, wherein the first data group comprises a coefficient and the second data group comprises a first differential refinement associated with the first data group coefficient. An apparatus for using content information for encoding multimedia data includes a content classifying module configured to classify content of multimedia data and provide content classification data, and an encoder configured to encode the multimedia data in a first data group and in a second data group based on the content classification, wherein the first data group comprises a coefficient and the second data group comprises a first differential refinement associated with the first data group coefficient

公开(公告)号：CA2600776A1

公开(公告)日：2006-09-21

申请号：CA2600776

申请日：2006-03-10

Applicant: QUALCOMM INC

Inventor： SETHI SUMEET SINGH ,  SHI FANG ,  OGUZ SEYFULLAH HALIT ,  RAVEENDRAN VIJAYALAKSHMI R ,  CHEN PEISONG

IPC: H04N19/895 ,  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：AR048535A1

公开(公告)日：2006-05-03

申请号：ARP050101383

申请日：2005-04-07

Applicant: QUALCOMM INC

Inventor： CHEN PEISONG ,  RAVEENDRAN VIJAYALAKSHMI R

IPC: H04N7/46 ,  G06T9/00 ,  H04N7/50

Abstract: Un método y aparato para proveer tramas de escalado temporal para su uso en multimedios digitales. El método implica utilizar una comunicacion de tramas de escalado temporales, predichas de modo unidireccional, removibles, junto con tramas intra- codificadas y/o tramas inter-codificadas. El método implica la capacidad de remover selectivamente la trama o las tramas de escalada temporal(es) para que no sean transmitidas o decodificadas, a efectos de satisfacer por ejemplo, las limitaciones de potencia eléctrica, límites en la velocidad de los datos, los límites computacionales o las condiciones del canal. Los ejemplos presentados incluyen codificadores, transcodificadores y decodificadores, en los que podría tomarse la decision de descartar las tramas de escalado temporal removibles.

公开(公告)号：MY180768A

公开(公告)日：2020-12-08

申请号：MYPI2012000121

申请日：2010-08-06

Applicant: QUALCOMM INC

Inventor： CHEN PEISONG ,  CHEN YING ,  KARCZEWICZ MARTA

Abstract: Source and destination video devices (20, 40) may use data structures that signal details of an operation point for an MPEG-2 (Motion Picture Experts Group) System bitstream. In one example, an apparatus includes a multiplexer (30) that constructs a data structure corresponding to a multiview video coding (MVC) operation point of an MPEG-2 (Motion Picture Experts Group) System standard bitstream, wherein the data structure signals a rendering capability value that describes a rendering capability to be satisfied by a receiving device to use the MVC operation point, a decoding capability value that describes a decoding capability to be satisfied by the receiving device to use the MVC operation point, and a bitrate value that describes a bitrate of the MVC operation point, and that includes the data structure as part of the bitstream, and an output interface that outputs the bitstream comprising the data structure.

公开(公告)号：CA2820061C

公开(公告)日：2019-12-03

申请号：CA2820061

申请日：2011-12-07

Applicant: QUALCOMM INC

Inventor： PANCHAL RAHUL P ,  KARCZEWICZ MARTA ,  CHEN PEISONG

IPC: H04N19/523 ,  H04N19/117 ,  H04N19/15 ,  H04N19/169 ,  H04N19/176 ,  H04N19/182 ,  H04N19/80

Abstract: This disclosure describes techniques for calculating values of sub-integer pixels applied by an encoder and a decoder to encode blocks of video data. In one example, a video encoder is configured to receive values for a full integer pixel positions of a reference sample, apply an interpolation filter to a first set of the values for the full integer pixel positions to calculate a value for a first sub-integer pixel of one of the full integer pixel positions, apply the interpolation filter to a second, different set of the values for the full integer pixel positions to calculate a value for a second, different sub- integer pixel of the one of the full integer pixel positions, encode a current block of pixels using a motion vector that points to one of the first sub-integer pixel and the second sub-integer pixel.