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公开(公告)号:ES2698515T3
公开(公告)日:2019-02-05
申请号:ES13877735
申请日:2013-03-15
Applicant: QUALCOMM INC
IPC: H04N19/11 , H04N19/119 , H04N19/182 , H04N19/597
Abstract: Un procedimiento de intra-codificación o intra-decodificación de datos de vídeo usando predicción de DC, los datos de vídeo que comprenden datos de profundidad, el procedimiento que comprende: determinar (440) un patrón de partición para un bloque de valores de profundidad que comprende asignar una o más muestras del bloque a una primera partición y asignar una o más muestras diferentes del bloque a una segunda partición; comparar una primera muestra de profundidad de la fila superior del bloque con una muestra de profundidad N-1 de la fila superior del bloque, donde la fila superior tiene N muestras de profundidad, para determinar si se incluye una primera frontera de partición en la fila superior del bloque; comparar una primera muestra de profundidad de la columna izquierda del bloque con una muestra de profundidad N-1 de la columna izquierda del bloque, donde la columna izquierda tiene N muestras de profundidad, para determinar si se incluye una segunda frontera de partición en la columna izquierda del bloque; determinar (442) un primer valor de DC predicho para la primera partición y un segundo valor de DC predicho para la segunda partición, basándose en si la primera frontera de partición está incluida en la fila superior y si la segunda frontera de partición está incluida en la columna izquierda del bloque, en donde la determinación de dichos valores predichos de DC comprende seleccionar una o más muestras vecinas de referencia que lindan con la partición respectiva, y en donde las una o más muestras vecinas de referencia se seleccionan para evitar las fronteras de partición; y codificar o decodificar al menos una entre la primera partición y la segunda partición, basándose, respectivamente, en el primer o el segundo valor predicho.
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公开(公告)号:TN2017000284A1
公开(公告)日:2019-01-16
申请号:TN2017000284
申请日:2016-01-27
Applicant: QUALCOMM INC
Inventor: CHEN JIANLE , CHEN YING , KARCZEWICZ MARTA , LI XIANG , LIU HONGBIN , ZHANG LI , ZHAO XIN
IPC: H04N19/105 , H04N19/186 , H04N19/463 , H04N19/593
Abstract: A system and method for encoding and decoding video data. A predicted residual signal of a target color component is determined as a function of one or more linear parameters of a linear model and of a residual signal of a source color component. A residual signal of the target color component is determined as a function of a remaining residual signal of the target color component and of the predicted residual signal of the target color component.
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公开(公告)号:CA3063559A1
公开(公告)日:2018-12-20
申请号:CA3063559
申请日:2018-05-24
Applicant: QUALCOMM INC
Inventor: SEREGIN VADIM , ZHAO XIN , KARCZEWICZ MARTA
IPC: H04N19/176 , H04N19/11 , H04N19/117 , H04N19/12 , H04N19/157 , H04N19/463 , H04N19/70
Abstract: A method of decoding video data includes receiving a block of video data, determining an intra prediction mode for the block of video data, and determining whether or not to use a position-dependent prediction combination (PDPC) mode to decode the block of video data based at least on the determined intra prediction mode. The method may also include receiving a syntax element associated with a primary transform or a secondary transform used for a block of video data, determining a usage of one or more video coding tools based on a value of the syntax element, the one or more video coding tools being video coding techniques other than the primary transform or secondary transform, and applying the one or more coding tools to the block of video data based on the determined usage.
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公开(公告)号:SG11201806737RA
公开(公告)日:2018-10-30
申请号:SG11201806737R
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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45.
公开(公告)号:CO2018009880A2
公开(公告)日:2018-09-28
申请号:CO2018009880
申请日:2018-09-19
Applicant: QUALCOMM INC
Inventor: KARCZEWICZ MARTA , CHEN JIANLE , LI XIANG , ZHANG LI , ZHAO XIN , CHUANG HSIAO-CHIANG , ZOU FENG
IPC: H04N19/50 , H04N19/103 , H04N19/119 , H04N19/176 , H04N19/30 , H04N19/46 , H04N19/583 , H04N19/96
Abstract: RESUMEN Un dispositivo de ejemplo para decodificar datos de video incluye un decodificador de video configurado para decodificar uno o más elementos de sintaxis en un nivel de árbol de región de un árbol de región de una estructura de datos de árbol para un bloque de árbol de codificación (CTB) de datos de video, el árbol de región tiene uno o más nodos de árbol de región que incluyen nodos de hoja y no hoja de árbol de región, cada uno de los nodos no hoja de árbol de región tiene al menos cuatro nodos hijos de árbol de región, decodificar uno o más elementos de sintaxis en un nivel de árbol de predicción para cada uno de los nodos de hoja de árbol de región de uno o más árboles de predicción de la estructura de datos de árbol para el CTB, los árboles de predicción tienen cada uno uno o más nodos de hoja y no hoja de árbol de predicción, cada uno de los nodos no hoja de árbol de predicción tiene al menos dos nodos hijo de árbol de predicción, cada uno de los nodos de hoja de predicción define unidades de codificación respectivas (CU),y decodificar datos de video para cada una de las CU.
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46.
公开(公告)号:AU2017238084A1
公开(公告)日:2018-08-30
申请号:AU2017238084
申请日:2017-03-21
Applicant: QUALCOMM INC
Inventor: SEREGIN VADIM , ZHAO XIN , SAID AMIR , KARCZEWICZ MARTA
IPC: H04N19/103 , H04N19/119 , H04N19/136 , H04N19/176 , H04N19/186
Abstract: A method of decoding video data comprises receiving a bitstream of encoded video data, the encoded video data representing partitioned luma blocks and partitioned chroma blocks, wherein the chroma blocks are partitioned independently of the luma blocks, determining a respective coding mode corresponding to the respective partitioned luma blocks, decoding the respective partitioned luma blocks according to the determined respective coding modes, decoding a first syntax element indicating that the respective coding modes associated with the respective partitioned luma blocks are to be used for decoding a first partitioned chroma block, wherein the first partitioned chroma block is aligned with two or more partitioned luma blocks, determining a chroma coding mode for the first partitioned chroma block according to a function of the respective coding modes of the two or more partitioned luma blocks, and decoding the first partitioned chroma block in accordance with the determined chroma coding mode.
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公开(公告)号:AU2016359171A1
公开(公告)日:2018-05-10
申请号:AU2016359171
申请日:2016-11-23
Applicant: QUALCOMM INC
Inventor: ZHANG LI , CHAO PANG , JIN GUOXIN , CHEN JIANLE , CHIEN WEI-JUNG , ZHAO XIN , LI XIANG , KARCZEWICZ MARTA
IPC: H04N19/105 , H04N19/119 , H04N19/122 , H04N19/176 , H04N19/186 , H04N19/96
Abstract: A video coder determines a coding unit (CU) is partitioned into transform units (TUs) of the CU based on a tree structure. As part of determining the CU is partitioned into the TUs of the CU based on the tree structure, the video coder determines that a node in the tree structure has exactly two child nodes in the tree structure. A root node of the tree structure corresponds to a coding block of the CU, each respective non-root node of the tree structure corresponds to a respective block that is a partition of a block that corresponds to a parent node of the respective non-root node, and leaf nodes of the tree structure correspond to the TUs of the CU.
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公开(公告)号:AU2016359165A1
公开(公告)日:2018-04-26
申请号:AU2016359165
申请日:2016-11-23
Applicant: QUALCOMM INC
Inventor: ZHANG LI , LI XIANG , CHEN JIANLE , CHIEN WEI-JUNG , ZHAO XIN , KARCZEWICZ MARTA
IPC: H04N19/119 , G06F17/14 , H04N19/42 , H04N19/60 , H04N19/625
Abstract: As part of a process of encoding video data, a video encoder applies a transform to a non-square residual block to generate a block of transform coefficients. Furthermore, the video encoder modifies the transform coefficients such that each respective transform coefficient of the block of transform coefficients is based on the respective dequantized transform coefficient multiplied by a factor of √2 or an approximation of √2. As part of a process of decoding video data, a video decoder applies, by the video decoder, a dequantization process to transform coefficients of a non-square transform block. The video decoder modifies the dequantized transform coefficients such that each respective dequantized transform coefficient of the dequantized transform coefficients is based on the respective dequantized transform coefficient divided by a factor of √2 or an approximation of √2.
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公开(公告)号:CA3035359A1
公开(公告)日:2018-04-12
申请号:CA3035359
申请日:2017-10-04
Applicant: QUALCOMM INC
Inventor: KARCZEWICZ MARTA , ZHANG LI , CHEN JIANLE , CHIEN WEI-JUNG , CHEN YI-WEN , ZHAO XIN
IPC: H04N19/176 , H04N19/117 , H04N19/14 , H04N19/182 , H04N19/70 , H04N19/82
Abstract: A video coder compares a first sample of a current block to a first set of neighbor samples to determine a first difference value; determines a first offset for the first sample based on the first difference value; compares a second sample of the current block to a second set of neighbor samples to determine a second difference value that has a same sign as the first difference value; determines an offset for the second sample, that is different than the offset for the first sample, based on the second difference value; and applies the first offset to the first sample value and the second offset to the second sample value to generate a filtered image.
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公开(公告)号:AU2016278972A1
公开(公告)日:2017-11-30
申请号:AU2016278972
申请日:2016-06-17
Applicant: QUALCOMM INC
Inventor: ZHAO XIN , CHEN JIANLE , ZHANG LI , KARCZEWICZ MARTA
IPC: H04N19/11 , H04N19/13 , H04N19/136 , H04N19/176 , H04N19/463 , H04N19/593 , H04N19/91
Abstract: A device includes one or more processors configured to derive, from among a plurality of intra prediction modes, M most probable modes (MPMs) for intra prediction of a block of video data. A syntax element indicating whether a MPM index or a non-MPM index is used to indicate a selected intra prediction mode of the plurality of intra prediction modes for intra prediction of the block of video data is decoded. Based on the indicated one of the MPM index or the non-MPM index being the MPM index, the one or more processors select, for each of one or more context-modeled bins of the MPM index, based on intra prediction modes used to decode one or more neighboring blocks, a context index for the context-modeled bin. The one or more processors reconstruct the block of video data based on the selected intra prediction mode.
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