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公开(公告)号:CA3014790A1
公开(公告)日:2017-09-28
申请号:CA3014790
申请日:2017-03-22
Applicant: QUALCOMM INC
Inventor: ZHAO XIN , SEREGIN VADIM , JOSHI RAJAN LAXMAN , SAID AMIR , LI XIANG , KARCZEWICZ MARTA , CHEN JIANLE , CHIEN WEI-JUNG
IPC: H04N19/176 , H04N19/103 , H04N19/122 , H04N19/134 , H04N19/61 , H04N19/70
Abstract: An example device for decoding encoded video data includes storage media and processing circuitry. The storage media are configured a portion of the encoded video data. The processing circuitry is configured to determine a block-level threshold for the portion of the encoded video data stored to the storage media, to determine that an encoded block of the portion of the encoded video data has a size that is equal to or greater than the threshold, to receive a syntax element indicating that a portion of the encoded block is to be reconstructed using a coding tool, to determine, based on the encoded block having the size that is equal to or greater than the threshold, that the syntax element applies to all samples of a plurality of samples included in the encoded block, and to reconstruct the encoded block based on the coding tool.
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公开(公告)号:AU2018291135B2
公开(公告)日:2023-04-20
申请号:AU2018291135
申请日:2018-06-28
Applicant: QUALCOMM INC
Inventor: ZHANG KAI , CHEN JIANLE , ZHAO XIN , KARCZEWICZ MARTA
IPC: H04N19/593
Abstract: An apparatus configured to encode or decode video data that includes a memory configured to store at least one reconstructed sample of video data and at least one processor, in communication with the memory, that is configured to identify at least one reconstructed sample, determine at least one extended angular intra prediction mode to use for intra prediction of at least one sample of a current block, intra predict, using the at least one extended angular intra prediction mode, at least one sample of the current block based on the at least one reconstructed sample, extended angular intra prediction modes including angular intra prediction modes other than angular prediction modes between horizontal -45 degrees and vertical -45 degrees, and encode or decode the current block based on the at least one predicted sample.
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公开(公告)号:MY193686A
公开(公告)日:2022-10-25
申请号:MYPI2018702180
申请日:2017-01-13
Applicant: QUALCOMM INC
Inventor: KARCZEWICZ MARTA , CHIEN WEI-JUNG , CHEN JIANLE , ZHANG LI , LI XIANG , ZHAO XIN
IPC: H04N19/136 , H04N7/12 , H04N11/02 , H04N19/105 , H04N19/119 , H04N19/172 , H04N19/176 , H04N19/44 , H04N19/50 , H04N19/60 , H04N19/70
Abstract: A method of decoding video data including receiving (400) a bitstream that includes a sequence of bits that forms a representation of a coded picture of the video data, partitioning (402) the coded picture of the video data into a plurality of blocks using three or more different partition structures, and reconstructing (404) 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. FIGURE 1
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公开(公告)号:AU2017238068B2
公开(公告)日:2022-04-07
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:ES2832607T3
公开(公告)日:2021-06-10
申请号:ES16732204
申请日:2016-06-17
Applicant: QUALCOMM INC
Inventor: ZHAO XIN , CHEN JIANLE , ZHANG LI , KARCZEWICZ MARTA
IPC: H04N19/176 , H04N19/11 , H04N19/13 , H04N19/136 , H04N19/463 , H04N19/593 , H04N19/91
Abstract: Un procedimiento de descodificación de un bloque actual de datos de vídeo, comprendiendo el procedimiento: derivar (450), de entre N+M modos de intrapredicción, M modos más probables, MPM, para la intrapredicción del bloque de datos de vídeo, en el que M es mayor que 3; descodificar (452) un elemento de sintaxis que indica si se usa un índice MPM o un índice no MPM para indicar un modo de intrapredicción seleccionado de la pluralidad de modos de intrapredicción para la intrapredicción del bloque de datos de vídeo, en el que el índice MPM indica cuál de los M MPM para la intrapredicción del bloque de datos de vídeo es el modo de intrapredicción seleccionado, y en el que el índice no MPM indica cuál de los N+M modos de intrapredicción distintos de los M MPM para la intrapredicción del bloque de datos de vídeo es el modo de intrapredicción seleccionado; en base al índice no MPM que indica el modo de intrapredicción seleccionado, descodificar (454) el índice no MPM, en el que el índice no MPM se codifica en el flujo de bits como una palabra de código más corta que ⌈ log2 N⌉ bits si el índice no MPM es uno de los X índices no MPM seleccionados de los N+M modos de intrapredicción y se codifica en el flujo de bits como un código de longitud fija con ⌈ log2 N⌉ bits de otro modo, siendo X un número entero, en el que hay un total de N valores disponibles del índice no MPM; y reconstruir (456) el bloque de datos de vídeo en base al modo de intrapredicción seleccionado.
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公开(公告)号:CA2972501C
公开(公告)日:2020-08-18
申请号:CA2972501
申请日:2016-01-27
Applicant: QUALCOMM INC
Inventor: CHEN JIANLE , LIU HONGBIN , CHEN YING , ZHANG LI , LI XIANG , ZHAO XIN , KARCZEWICZ MARTA
IPC: H04N19/593 , H04N19/105 , H04N19/126 , H04N19/186
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:RU2723568C2
公开(公告)日:2020-06-16
申请号:RU2018133019
申请日:2017-03-21
Applicant: QUALCOMM INC
Inventor: SEREGIN VADIM , ZHAO XIN , SAID AMIR , KARCZEWICZ MARTA
IPC: H04N19/103 , H04N19/186 , H04N19/593
Abstract: Изобретениеотноситсяк кодированиюи декодированиювидео. Техническимрезультатомявляетсяопределениепараметровдлярежимапозиционно-зависимогосравненияинтрапредсказания (PDPC), когдаблокивидеоданныхмогутбытьразделенынанеквадратныеблоки. Предложенспособдекодированиявидеоданных, содержащийприемблокавидеоданных, закодированныхс использованием PDPC, причемблоквидеоданныхимеетнеквадратнуюформу, определяемуюширинойи высотой, определениеодногоилинесколькихпараметров PDPC наосновеодногоилиболееизшириныиливысотыблокавидеоданныхи декодированиеблокавидеоданныхс использованиемрежима PDPC иопределенныхпараметров PDPC, причемопределениеодногоилинесколькихгоризонтально-связанныхпараметров PDPC содержитизвлечениеоднойилинесколькихзаписейоднойилинесколькихтаблицпоискав качествефункциишириныблокавидеоданных. 6 н. и 20 з.п. ф-лы, 14 ил.
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公开(公告)号:SG11202001985VA
公开(公告)日:2020-04-29
申请号:SG11202001985V
申请日:2018-10-10
Applicant: QUALCOMM INC
Inventor: ZHANG KAI , CHEN JIANLE , ZHAO XIN , KARCZEWICZ MARTA
IPC: H04N19/54 , H04N19/109 , H04N19/147 , H04N19/174 , H04N19/176 , H04N19/70
Abstract: A device for video decoding can be configured to obtain, from a syntax structure in a bitstream comprising an encoded representation of the video data, a syntax element indicating whether 6-parameter affine prediction is enabled for blocks corresponding to the syntax structure, wherein the blocks corresponding to the syntax structure comprise a first block; based on the syntax element indicating that the 6-parameter affine prediction is enabled for the blocks corresponding to the syntax structure, use the 6-parameter affine prediction to generate a predictive block for the first block; and use the predictive block and residual data to reconstruct the first block.
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公开(公告)号:AU2016270634B2
公开(公告)日:2020-03-12
申请号:AU2016270634
申请日:2016-05-27
Applicant: QUALCOMM INC
Inventor: ZHANG LI , CHEN JIANLE , ZHAO XIN , LI XIANG , LIU HONGBIN , CHEN YING , KARCZEWICZ MARTA
Abstract: An example method of entropy coding video data includes obtaining a pre-defined initialization value for a context of a plurality of contexts used in a context-adaptive entropy coding process to entropy code a value for a syntax element in a slice of the video data, wherein the pre-defined initialization value is stored with N-bit precision; determining, using a look-up table and based on the pre-defined initialization value, an initial probability state of the context for the slice of the video data, wherein a number of possible probability states for the context is greater than two raised to the power of N; and entropy coding, based on the initial probability state of the context, a bin of the value for the syntax element.
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公开(公告)号:EA034473B1
公开(公告)日:2020-02-12
申请号:EA201791476
申请日:2016-01-27
Applicant: QUALCOMM INC
Inventor: CHEN JIANLE , LIU HONGBIN , CHEN YING , ZHANG LI , LI XIANG , ZHAO XIN , KARCZEWICZ MARTA
IPC: H04N19/593 , H04N19/105 , H04N19/186 , H04N19/463
Abstract: Системаи способдлякодированияи декодированиявидеоданных. Предсказанныйостаточныйсигналцелевойцветовойкомпонентыопределяетсяв качествефункцииодногоилиболеелинейныхпараметровлинейноймоделии остаточногосигналацветовойкомпонентыисточника. Остаточныйсигналцелевойцветовойкомпонентыопределяетсяв качествефункцииоставшегосяостаточногосигналацелевойцветовойкомпонентыи предсказанногоостаточногосигналацелевойцветовойкомпоненты.
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