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公开(公告)号:CL2018002662A1
公开(公告)日:2019-01-25
申请号:CL2018002662
申请日:2018-09-20
Applicant: QUALCOMM INC
Inventor: KARCZEWICZ MARTA , SEREGIN VADIM , ZHAO XIN , SAID AMIR
IPC: H04N19/103 , H04N19/119 , H04N19/136 , H04N19/176 , H04N19/186
Abstract: UN MÉTODO PARA DECODIFICAR DATOS DE VIDEO COMPRENDE RECIBIR UNA CORRIENTE DE BITS DE DATOS DE VIDEO CODIFICADOS, LOS DATOS DE VIDEO CODIFICADOS REPRESENTANDO BLOQUES DE LUMINANCIA DIVIDIDOS Y BLOQUES DE CROMINANCIA DIVIDIDOS, EN DONDE LOS BLOQUES DE CROMINANCIA SON DIVIDIDOS INDEPENDIENTEMENTE DE LOS BLOQUES DE LUMINANCIA, DETERMINAR UN MODO DE CODIFICACIÓN RESPECTIVO CORRESPONDIENTE A LOS BLOQUES DE LUMINANCIA DIVIDIDOS RESPECTIVOS, DECODIFICAR LOS BLOQUES DE LUMINANCIA DIVIDIDOS RESPECTIVOS DE ACUERDO CON LOS MODOS DE CODIFICACIÓN RESPETIVOS DETERMINADOS, DECODIFICAR UN PRIMER ELEMENTO DE SINTAXIS INDICANDO QUE LOS MODOS DE CODIFICACIÓN RESPECTIVOS ASOCIADOS CON LOS BLOQUES DE LUMINANCIA DIVIDIDOS RESPECTIVOS VAN A SER UTILIZADOS PARA DECODIFICAR UN PRIMER BLOQUE DE CROMINANCIA DIVIDIDO, EN DONDE EL PRIMER BLOQUE DE CROMINANCIA DIVIDIDO ESTÁ ALINEADO CON DOS O MÁS BLOQUES DE LUMINANCIA DIVIDIDOS, DETERMINAR UN MODO DE CODIFICACIÓN DE CROMINANCIA PARA EL PRIMER BLOQUE DE CROMINANCIA DIVIDIDO DE ACUERDO CON UNA FUNCIÓN DE LOS MODOS DE CODIFICACIÓN RESPECTIVOS DE LOS DOS O MÁS BLOQUES DE LUMINANCIA DIVIDIDOS, Y DECODIFICAR EL PRIMER BLOQUE DE CROMINANCIA DIVIDIDO DE ACUERDO CON EL MODO DE CODIFICACIÓN DE CROMINANCIA DETERMINADO.
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公开(公告)号:TN2017000286A1
公开(公告)日:2019-01-16
申请号:TN2017000286
申请日:2016-01-26
Applicant: QUALCOMM INC
Inventor: CHEN JIANLE , CHEN YING , KARCZEWICZ MARTA , LEE SUNGWON , LI XIANG , LIU HONGBIN , ZHANG LI , ZHAO XIN
IPC: H04N19/12 , H04N19/136 , H04N19/157 , H04N19/159 , H04N19/167 , H04N19/176 , H04N19/60 , H04N19/70
Abstract: Example techniques are described to determine transforms to be used during video encoding and video decoding. A video encoder and a video decoder may select transform subsets that each identify one or more candidate transforms. The video encoder and the video decoder may determine transforms from the selected transform subsets.
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公开(公告)号:CO2018009869A2
公开(公告)日:2018-09-28
申请号:CO2018009869
申请日:2018-09-19
Applicant: QUALCOMM INC
Inventor: KARCZEWICZ MARTA , SEREGIN VADIM , ZHAO XIN , SAID AMIR
IPC: H04N19/593 , H04N19/11 , H04N19/167 , H04N19/176
Abstract: RESUMEN Un método para decodificar datos de video comprende recibir un bloque de datos de video codificados mediante un modo de combinación de intrapredicción dependiente de la posición (PDPC), donde el bloque de datos de video tiene una forma no cuadrada definida por una anchura y una altura, determinar uno o más parámetros de PDPC con base en una o más de la anchura o la altura del bloque de datos de video, y decodificar el bloque de datos de video mediante el modo de PDPC y los parámetros de PDPC determinados.
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公开(公告)号:AU2017238068A1
公开(公告)日:2018-08-30
申请号:AU2017238068
申请日:2017-03-21
Applicant: QUALCOMM INC
Inventor: LI XIANG , CHEN JIANLE , ZHANG LI , ZHAO XIN , CHUANG HSIAO-CHIANG , ZOU FENG , KARCZEWICZ MARTA
IPC: H04N19/50 , H04N19/103 , H04N19/119 , H04N19/176 , H04N19/30 , H04N19/46 , H04N19/583 , H04N19/96
Abstract: An example device for decoding video data includes a video decoder configured to decode one or more syntax elements at a region-tree level of a region-tree of a tree data structure for a coding tree block (CTB) of video data, the region-tree having one or more region-tree nodes including region-tree leaf and non-leaf nodes, each of the region-tree non-leaf nodes having at least four child region-tree nodes, decode one or more syntax elements at a prediction-tree level for each of the region-tree leaf nodes of one or more prediction trees of the tree data structure for the CTB, the prediction trees each having one or more prediction-tree leaf and non-leaf nodes, each of the prediction-tree non-leaf nodes having at least two child prediction-tree nodes, each of the prediction leaf nodes defining respective coding units (CUs), and decode video data for each of the CUs.
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公开(公告)号:SG11201804725YA
公开(公告)日:2018-07-30
申请号:SG11201804725Y
申请日:2017-01-13
Applicant: QUALCOMM INC
Inventor: LI XIANG , ZHANG LI , CHIEN WEI-JUNG , CHEN JIANLE , ZHAO XIN , KARCZEWICZ MARTA
IPC: H04N19/105 , H04N19/119 , H04N19/136 , H04N19/172 , H04N19/176 , H04N19/50
Abstract: A method of decoding video data including receiving a bitstream that includes a sequence of bits that forms a representation of a coded picture of the video data, partitioning the coded picture of the video data into a plurality of blocks using three or more different partition structures, and reconstructing the plurality of blocks of the coded picture of the video data. Partitioning the coded picture of the video data may include partitioning the coded picture of the video data into the plurality of blocks using the three or more different partition structures, wherein at least three of the three or more different partition structures may be used at each depth of a tree structure that represents how a particular block of the coded picture of the video data is partitioned.
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公开(公告)号:CO2018007220A2
公开(公告)日:2018-07-19
申请号:CO2018007220
申请日:2018-07-11
Applicant: QUALCOMM INC
Inventor: KARCZEWICZ MARTA , CHEN JIANLE , LI XIANG , ZHANG LI , CHIEN WEI-JUNG , ZHAO XIN
IPC: H04N19/105 , H04N19/119 , H04N19/136 , H04N19/172 , H04N19/176 , H04N19/50
Abstract: RESUMEN Se proporciona un método de decodificación de datos de video, que incluye recibir un flujo de bits que incluye una secuencia de bits que forma una representación de una imagen codificada de los datos de video, particionar la imagen codificada de los datos de video en una pluralidad de bloques mediante el uso de tres o más estructuras de partición diferentes, y reconstruir la pluralidad de bloques de la imagen codificada de los datos de video. La partición de la imagen codificada de los datos de video puede incluir particionar la imagen codificada de los datos de video en la pluralidad de bloques mediante el uso de las tres o más estructuras de partición diferentes, donde al menos tres de las tres o más estructuras de partición diferentes pueden utilizarse en cada profundidad de una estructura de árbol que representa la forma en que se particiona un bloque particular de la imagen codificada de los datos de video.
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公开(公告)号:AU2016359155A1
公开(公告)日:2018-04-26
申请号:AU2016359155
申请日:2016-11-23
Applicant: QUALCOMM INC
Inventor: ZHANG LI , CHEN JIANLE , CHIEN WEI-JUNG , ZHAO XIN , LI XIANG , KARCZEWICZ MARTA
IPC: H04N19/119 , H04N19/132 , H04N19/186 , H04N19/593
Abstract: A video coder reconstructs a set of chroma reference samples and reconstructs luma samples of a non-square prediction unit. Additionally, the video coder sub-samples the set of luma reference samples such that a total number of the luma reference samples that neighbor a longer side of the non-square prediction block is the same as a total number of the luma reference samples that neighbor a shorter side of the non-square prediction block. The video coder determines a Linear Model (LM) parameter based on formula
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公开(公告)号:AU2016332318A1
公开(公告)日:2018-04-26
申请号:AU2016332318
申请日:2016-09-21
Applicant: QUALCOMM INC
Inventor: ZHAO XIN , CHEN JIANLE , SAID AMIR , KARCZEWICZ MARTA , SEREGIN VADIM
IPC: H04N19/159 , H04N19/12 , H04N19/176 , H04N19/18 , H04N19/61
Abstract: Techniques are described in which a decoder is configured to reorganize a first 2-dimensional coefficient block as a first 1-dimensional coefficient vector according to a coefficient scanning order and apply a first inverse transform to the first 1-dimensional coefficient vector to generate a second 1-dimensional coefficient vector. The first inverse transform is a non-separable transform. The decoder is further configured to reorganize the first 1-dimensional coefficient vector as a second 2-dimensional coefficient block and apply a second inverse transform to the second 2-dimensional coefficient block to generate a residual video block. The second inverse transform converts the second 2-dimensional coefficient block from a frequency domain to a pixel domain. The decoder is further configured to form a decoded video block, wherein forming the decoded video block comprises summing the residual video block with one or more predictive blocks.
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公开(公告)号:CA3028469A1
公开(公告)日:2018-02-08
申请号:CA3028469
申请日:2017-08-02
Applicant: QUALCOMM INC
Inventor: ZHANG LI , CHIEN WEI-JUNG , ZHAO XIN , CHEN YI-WEN , KARCZEWICZ MARTA
IPC: H04N19/117 , H04N19/136 , H04N19/157 , H04N19/176 , H04N19/186 , H04N19/82
Abstract: The present disclosure provides various techniques related to adaptive loop filtering (ALF), and particular to geometry transformation-based ALF (GALF). In an aspect, a method for decoding video data includes receiving an encoded bitstream having coded video data from which reconstructed video units are generated, identifying multiple filter supports for the reconstructed video units, and filtering the reconstructed video units using the respective multiple filter supports to produce a decoded video output. Another method includes enabling block-level control of ALF of chroma components for the reconstructed video units, performing, for the reconstructed video units, the block-level ALF for the chroma components when ALF is enabled for one video block and skip performing the block-level ALF for the chroma components when ALF is disabled for another video block, and generating, based on the enabled block-level control of ALF, a decoded video output. Related devices, means, and computer-readable medium are also described.
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公开(公告)号:AU2016278991A1
公开(公告)日:2017-11-30
申请号:AU2016278991
申请日:2016-06-17
Applicant: QUALCOMM INC
Inventor: ZHAO XIN , CHEN JIANLE , ZHANG LI , KARCZEWICZ MARTA
IPC: H04N19/176 , H04N19/11 , H04N19/136 , H04N19/463 , H04N19/59 , H04N19/593 , H04N19/80
Abstract: A device for decoding video data includes one or more processors configured to decode syntax information that indicates a selected intra prediction mode for a block of video data from among a plurality of intra prediction modes. The plurality of intra prediction modes includes greater than 33 angular intra prediction modes. The angular intra prediction modes defined such that interpolation is performed in 1/32 pel accuracy. The one or more processors reconstruct the block of video data based on the selected intra prediction mode.
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