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公开(公告)号：CA2636041C
公开(公告)日：2013-01-29
申请号：CA2636041
申请日：2007-01-19
Applicant: QUALCOMM INC
IPC: H04N7/26 , H04N19/89 , H04N7/50 , H04N19/895
Abstract: Methods and apparatuses to encode multimedia data enabling, among others, for example, improved decoded video quality, improved error recovery capabilities and/or improved decoding efficiency are described. A method according to the application includes one or more of the following: initializing a pixel-level reference counter for a current frame, performing a prediction of a next frame referring to the current frame, incrementing the pixel-level reference counter for each pixel of the current frame that is referenced during the prediction of the next frame, readjusting a macroblock bandwidth map of the current frame, repeating the steps of initializing, performing and readjusting for each next frame in a plurality of next frames referring to the current frame, and encoding the current frame based at least in part on the readjusted macroblock bandwidth map of the current frame.
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公开(公告)号：BRPI0707150A2
公开(公告)日：2011-04-19
申请号：BRPI0707150
申请日：2007-01-19
Applicant: QUALCOMM INC
IPC: H04N7/26 , H04N19/89 , H04N7/50 , H04N19/895
Abstract: Methods and apparatuses to encode multimedia data enabling, among others, for example, improved decoded video quality, improved error recovery capabilities and/or improved decoding efficiency are described. A method according to the application includes one or more of the following: initializing a pixel-level reference counter for a current frame, performing a prediction of a next frame referring to the current frame, incrementing the pixel-level reference counter for each pixel of the current frame that is referenced during the prediction of the next frame, readjusting a macroblock bandwidth map of the current frame, repeating the steps of initializing, performing and readjusting for each next frame in a plurality of next frames referring to the current frame, and encoding the current frame based at least in part on the readjusted macroblock bandwidth map of the current frame.
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公开(公告)号：AU2007205840C1
公开(公告)日：2010-10-28
申请号：AU2007205840
申请日：2007-01-19
Applicant: QUALCOMM INC
IPC: H04N7/26 , H04N19/89 , H04N7/50 , H04N19/895
Abstract: Methods and apparatuses to encode multimedia data enabling, among others, for example, improved decoded video quality, improved error recovery capabilities and/or improved decoding efficiency are described. A method according to the application includes one or more of the following: initializing a pixel-level reference counter for a current frame, performing a prediction of a next frame referring to the current frame, incrementing the pixel-level reference counter for each pixel of the current frame that is referenced during the prediction of the next frame, readjusting a macroblock bandwidth map of the current frame, repeating the steps of initializing, performing and readjusting for each next frame in a plurality of next frames referring to the current frame, and encoding the current frame based at least in part on the readjusted macroblock bandwidth map of the current frame.
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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
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
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公开(公告)号：BRPI0718810A2
公开(公告)日：2013-12-03
申请号：BRPI0718810
申请日：2007-11-15
Applicant: QUALCOMM INC
Inventor： WALKER GORDON KENT , RAVEENDRAN VIJAYALAKSHMI R , LOUKAS SERAFIM S , OGUZ SEYFULLAH HALLT , SHI FANG , SUBRAMANIA SITARAMAN GANAPATHY , BHAMIDIPATI PHANIKUMAR , DETERMAN JAMES T
Abstract: Techniques for video encoding and decoding a common guide media logic channel (MLC) to enable fast acquisition and re/synchronization of the video stream while preserving compression efficiency are provided. Systems and methods to process multimedia data using channel switch frames are presented. The system comprises an encoder operative to generate a common guide media logical channel (MLC) of a plurality of channel switch frames (CSFs), each respective active channel having one or more CSFs in the guide MLC. The decoder in the system is operative to decode a set of the plurality of CSFs from the guide MLC. The decoder simultaneously displays programming content of the decoded set of the plurality of CSFs on a display and automatically switches to a primary bitstream of an active channel associated with a selected one displayed CSF.
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Patent Agency Ranking
公开(公告)号：AU2006294509B2
公开(公告)日：2010-12-02
申请号：AU2006294509
申请日：2006-09-27
Applicant: QUALCOMM INC
Inventor： SHI FANG , RAVEENDRAN VIJAYALAKSHMI R , OGUZ SEYFULLAH HALIT , WALKER GORDON KENT , SUBRAMANIA SITARAMAN GANAPATHY , TIAN TAO , BHAMIDIPATI PHANIKUMAR , CHEN PEISONG
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.
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公开(公告)号：NO20083594L
公开(公告)日：2008-10-17
申请号：NO20083594
申请日：2008-08-19
Applicant: QUALCOMM INC
IPC: H04N7/50 , H04N19/89 , H04N19/895
Abstract: Methods and apparatuses to encode multimedia data enabling, among others, for example, improved decoded video quality, improved error recovery capabilities and/or improved decoding efficiency are described. A method according to the application includes one or more of the following: initializing a pixel-level reference counter for a current frame, performing a prediction of a next frame referring to the current frame, incrementing the pixel-level reference counter for each pixel of the current frame that is referenced during the prediction of the next frame, readjusting a macroblock bandwidth map of the current frame, repeating the steps of initializing, performing and readjusting for each next frame in a plurality of next frames referring to the current frame, and encoding the current frame based at least in part on the readjusted macroblock bandwidth map of the current frame.
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公开(公告)号：CA2623929C
公开(公告)日：2013-04-30
申请号：CA2623929
申请日：2006-09-27
Applicant: QUALCOMM INC
Inventor： RAVEENDRAN VIJAYALAKSHMI R , WALKER GORDON KENT , TIAN TAO , BHAMIDIPATI PHANIKUMAR , SHI FANG , CHEN PEISONG , SUBRAMANIA SITARAMAN GANAPATHY , OGUZ SEYFULLAH HALIT
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
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公开(公告)号：ES2336039T3
公开(公告)日：2010-04-07
申请号：ES07710232
申请日：2007-01-19
Applicant: QUALCOMM INC
IPC: H04N7/26 , H04N19/89 , H04N19/895
Abstract: Procedimiento de codificación de datos multimedia que comprende: la estimación de un valor de distorsión para una primera parte de datos multimedia en base, en parte, a por lo menos uno o más procedimientos de ocultamiento relacionados con el ocultamiento de la primera parte si la primera parte fuese recibida erróneamente (402); y la determinación de un procedimiento de codificación para la primera parte en base, en parte, a por lo menos una comparación del valor de distorsión estimado y un umbral; caracterizado porque: el umbral varía en función de uno o más factores seleccionados de una lista de factores (404), la lista de factores incluyendo: una ubicación de la primera parte en una trama que contiene la primera parte, una textura de un área de la trama que contiene la primera parte, una posición de la trama que contiene la primera parte dentro de un grupo de imágenes que contienen la trama, una distribución de valores de distorsión en la trama que contiene la primera parte, y una actividad de movimiento del área de la trama que contiene la primera parte.
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公开(公告)号：AT450118T
公开(公告)日：2009-12-15
申请号：AT07710232
申请日：2007-01-19
Applicant: QUALCOMM INC
IPC: H04N7/26 , H04N19/89 , H04N19/895
Abstract: Methods and apparatuses to encode multimedia data enabling, among others, for example, improved decoded video quality, improved error recovery capabilities and/or improved decoding efficiency are described. An encoder device determines one or more distortion values for one or more portions of multimedia data based at least in part on one or more concealment methods related to concealing the one or more portions if the one or more portions were received in error. The encoder device determines one or more encoding methods for the one or more portions based at least in part on the one or more estimated distortion values. In one aspect, determining the one or more encoding methods comprises determining the one or more encoding methods so as to refresh the one or more portions based at least in part on a comparison of the one or more estimated distortion values and one or more thresholds.
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