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公开(公告)号:WO2008157269A2
公开(公告)日:2008-12-24
申请号:PCT/US2008066797
申请日:2008-06-12
Applicant: QUALCOMM INC , YE YAN , KARCZEWICZ MARTA
Inventor: YE YAN , KARCZEWICZ MARTA
CPC classification number: H04N19/625 , H04N19/103 , H04N19/11 , H04N19/12 , H04N19/122 , H04N19/129 , H04N19/13 , H04N19/147 , H04N19/157 , H04N19/176 , H04N19/18 , H04N19/19 , H04N19/196 , H04N19/197 , H04N19/42 , H04N19/46 , H04N19/463 , H04N19/48 , H04N19/593 , H04N19/61 , H04N19/70
Abstract: This disclosure describes techniques for coding of header information of video blocks. In particular, the techniques of this disclosure select one of a plurality of prediction modes for use in generating a prediction block of a video block of a coding unit, the plurality of prediction modes including unidirectional prediction modes and multi directional prediction modes that combine at least two unidirectional prediction modes. An encoding device encodes the prediction mode of the current video block based on prediction modes of one or more previously encoded video blocks of the coding unit. Likewise, a decoding unit receives encoded video data of a video block of a coding unit and decodes the encoded video data to identify one of a plurality of prediction modes for use in generating a prediction block of the video block based on prediction modes of one or more previously decoded video blocks of the coding unit.
Abstract translation: 本公开描述了用于编码视频块的头信息的技术。 特别地,本公开的技术选择用于生成编码单元的视频块的预测块的多种预测模式中的一种,所述多种预测模式包括单向预测模式和至少组合的多方向预测模式 两种单向预测模式。 编码装置基于编码单元的一个或多个先前编码的视频块的预测模式对当前视频块的预测模式进行编码。 类似地,解码单元接收编码单元的视频块的编码视频数据,并对编码视频数据进行解码,以基于一个或多个预测模式的预测模式来识别用于生成视频块的预测块的多个预测模式之一 编码单元的更先前解码的视频块。
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公开(公告)号:AU2023385153A1
公开(公告)日:2025-04-17
申请号:AU2023385153
申请日:2023-11-15
Applicant: QUALCOMM INC
Inventor: ZHANG YAN , HUANG HAN , SEREGIN VADIM , KARCZEWICZ MARTA
IPC: H04N19/109 , H04N19/105 , H04N19/176 , H04N19/52 , H04N19/577
Abstract: A video coder is configured to receive a first block of video data to be coded using adaptive affine decoder side motion vector refinement (DMVR). The video coder may determine to set a first motion vector difference (MVD) for a first reference picture list to zero, and then refine control point motion vectors (CPMVs) associated with a second reference picture list to generate refined CPMVs. The video coder may then code the first block of video data using the refined CPMVs.
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93.
公开(公告)号:PL3821604T3
公开(公告)日:2025-04-14
申请号:PL19746243
申请日:2019-07-10
Applicant: QUALCOMM INC
Inventor: PHAM VAN LUONG , CHIEN WEI-JUNG , SEREGIN VADIM , KARCZEWICZ MARTA , HUANG HAN
IPC: H04N19/436 , H04N19/52
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公开(公告)号:AU2023360499A1
公开(公告)日:2025-03-20
申请号:AU2023360499
申请日:2023-09-21
Applicant: QUALCOMM INC
Inventor: HUANG HAN , SEREGIN VADIM , KARCZEWICZ MARTA
IPC: H04N19/109 , H04N19/147 , H04N19/176 , H04N19/513 , H04N19/567
Abstract: A video coder may be configured to partition a coding block into subblocks, and generate initial subblock motion vectors for a plurality of the subblocks. The video coder may further refine the initial subblock motion vectors for the plurality of the subblocks using decoder side motion vector refinement to produce refined subblock motion vectors for the plurality of the subblocks, and perform a linear regression on the refined subblock motion vectors and coordinates of the plurality of the subblocks to derive an affine motion model. The video coder may then code the coding block using the derived affine motion model.
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公开(公告)号:PL3403405T3
公开(公告)日:2025-03-10
申请号:PL17703841
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
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公开(公告)号:MX372863B
公开(公告)日:2025-03-05
申请号:MX2017016049
申请日:2017-12-08
Applicant: QUALCOMM INC
Inventor: ZOU FENG , KARCZEWICZ MARTA , JOSHI RAJAN LAXMAN , SEREGIN VADIM , PU WEI
IPC: H04N19/70 , H04N19/176 , H04N19/186 , H04N19/91 , H04N19/93
Abstract: Un método de ejemplo de codificación de datos de video incluye codificar, de un flujo de bits de video codificado, un elemento de sintaxis que indica si se aplica un proceso de transposición a índices de paleta de una paleta para un bloque actual de datos de video; decodificar, del flujo de bits de video codificado y en una posición en el flujo de bits de video codificado que está después del elemento de sintaxis que indica si se aplica el proceso de transposición a índices de paleta de la paleta para el bloque actual de datos de video, uno o más elementos de sintaxis relacionados con parámetro de cuantificación (QP) delta y/o compensaciones QP de croma para el bloque actual de datos de video; y decodificar el bloque actual de datos de video con base en la paleta para el bloque actual de datos de video y el uno o más elementos de sintaxis relacionados con QP delta y/o compensaciones QP de croma para el bloque actual de datos de video.
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97.
公开(公告)号:PL3868108T3
公开(公告)日:2025-02-24
申请号:PL19801448
申请日:2019-10-18
Applicant: QUALCOMM INC
Inventor: KARCZEWICZ MARTA , COBAN MUHAMMED ZEYD
IPC: H04N19/70 , H04N19/122 , H04N19/132 , H04N19/176 , H04N19/18 , H04N19/91
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公开(公告)号:ES2998471T3
公开(公告)日:2025-02-20
申请号:ES17703841
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: Un método para decodificar datos de vídeo 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 vídeo, dividir la imagen codificada de los datos de vídeo en una pluralidad de bloques utilizando tres o más estructuras de partición diferentes y reconstruir la pluralidad de bloques de la imagen codificada de los datos de vídeo. La división de la imagen codificada de los datos de vídeo puede incluir la división de la imagen codificada de los datos de vídeo en la pluralidad de bloques utilizando las tres o más estructuras de partición diferentes, en 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 cómo se divide un bloque particular de la imagen codificada de los datos de vídeo. (Traducción automática con Google Translate, sin valor legal)
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公开(公告)号:ZA202106737B
公开(公告)日:2025-01-29
申请号:ZA202106737
申请日:2021-09-10
Applicant: QUALCOMM INC
Inventor: KARCZEWICZ MARTA , COBAN MUHAMMED ZEYD , WANG HONGTAO
Abstract: A device for decoding video data determines, for a residual block of video data encoded using a transform skip mode, a value for a first neighboring coefficient of a coefficient currently being decoded; determines a value for a second neighboring coefficient of the coefficient currently being decoded; determines a context offset for the coefficient currently being decoded based on the value for the first neighboring coefficient and the value for the second neighboring coefficient; and decodes a value for the coefficient currently being decoded based on the determined context offset.
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公开(公告)号:AU2020235621B2
公开(公告)日:2024-11-28
申请号:AU2020235621
申请日:2020-03-12
Applicant: QUALCOMM INC
Inventor: EGILMEZ HILMI ENES , SAID AMIR , SEREGIN VADIM , KARCZEWICZ MARTA
IPC: H04N19/12 , H04N19/157 , H04N19/176 , H04N19/625
Abstract: An example method includes inferring, for a current transform block of a current video block, a transform type from a plurality of transform types that includes one or more discrete cosine transforms (DCTs) and one or more discrete sine transforms (DSTs), wherein inferring the transform type comprises: determining a size of the current transform block; determining whether the current video block is partitioned using intra-subblock partitioning (ISP); and responsive to determining that the size of the current transform block is less than a threshold and that the current video block is partitioned using ISP, selecting a particular DST of the one or more DSTs as the selected transform type; transforming, using the selected transform type, the current transform block to obtain a block of reconstructed residual data for the video block; and reconstructing, based on the reconstructed residual data for the video block, the video block.
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