-
公开(公告)号：US20210092377A1
公开(公告)日：2021-03-25
申请号：US17109873
申请日：2020-12-02
Inventor： Kai ZHANG , Li ZHANG , Hongbin LIU , Yue WANG
IPC: H04N19/119 , H04N19/96 , H04N19/169 , H04N19/176
Abstract: A method for video bitstream processing, comprising: determining that a first portion of a data unit of the video bitstream exceeds beyond one or multiple borders of a second portion of the data unit of the video bitstream; and performing at least one of: extended quad tree (EQT) partitioning, flexible tree (FT) partitioning, or generalized triple tree (GTT) partitioning of the first portion of the data unit based on the determination that the first portion exceeds beyond the border.
-
公开(公告)号：US20210076063A1
公开(公告)日：2021-03-11
申请号：US17086935
申请日：2020-11-02
Inventor： Hongbin LIU , Li ZHANG , Kai ZHANG , Yue WANG
IPC: H04N19/513 , H04N19/176 , H04N19/159 , H04N19/105 , H04N19/44 , H04N19/139
Abstract: Devices, systems and methods for digital video coding, which include decoder side motion vector derivation (DMVD) tools, are described. An exemplary method for video processing includes making a decision, based on a determination that a current block of a video is coded using a multi-hypothesis prediction mode, regarding a selective enablement of a DMVD tool for the current block, wherein the DMVD tool derives a refinement of motion information signaled in a bitstream representation of the video; and performing, based on the decision, a conversion between the current block and the bitstream representation.
-
公开(公告)号：US20210058647A1
公开(公告)日：2021-02-25
申请号：US17090276
申请日：2020-11-05
Inventor： Li ZHANG , Kai ZHANG , Hongbin LIU , Hsiao Chiang CHUANG , Yue WANG
IPC: H04N19/96 , H04N19/176 , H04N19/119
Abstract: Methods, systems and devices for using flexible and efficient partitioning techniques are described. An exemplary method for visual media decoding includes applying, to a current visual media block, a partitioning process that splits the current visual media block into exactly four sub-blocks including at least one sub-block that has a size different from half of a width of the current visual media block times half of a height of the current visual media block, decoding, based on a bitstream representation, the four sub-blocks, and decoding, based on the four sub-blocks and the partitioning process, the current visual media block.
-
公开(公告)号：US20210058637A1
公开(公告)日：2021-02-25
申请号：US17090122
申请日：2020-11-05
Inventor： Kai ZHANG , Li ZHANG , Hongbin LIU , Yue WANG
IPC: H04N19/513 , H04N19/176
Abstract: A video processing method for efficient affine merge motion vector derivation is disclosed. In one aspect, a video processing method is provided to include partitioning a current video block into sub-blocks; deriving, for each sub-block, a motion vector, wherein the motion vector for each sub-block is associated with a position for that sub-block according to a position rule; and processing a bitstream representation of the current video block using motion vectors for the sub-blocks.
-
公开(公告)号：US20210051348A1
公开(公告)日：2021-02-18
申请号：US17090364
申请日：2020-11-05
Inventor： Li ZHANG , Kai ZHANG , Hongbin LIU , Hsiao Chiang CHUANG , Yue WANG
IPC: H04N19/96 , H04N19/119 , H04N19/176
Abstract: Methods, systems and devices for using flexible and efficient partitioning techniques, and in particular, depth calculations for extended quadtree partitioning, are described. An exemplary method for visual media decoding includes applying, to a current visual media block, a partitioning process that splits the current visual media block into exactly four sub-blocks including at least one sub-block that has a size different from half of a width of the current visual media block times half of a height of the current visual media block; decoding, based on a bitstream representation, the four sub-blocks; and decoding, based on the four sub-blocks and the partitioning process, the current visual media block.
-
Patent Agency Ranking
公开(公告)号：US20210051339A1
公开(公告)日：2021-02-18
申请号：US17087033
申请日：2020-11-02
Inventor： Hongbin LIU , Li ZHANG , Kai ZHANG , Yue WANG
IPC: H04N19/52 , H04N19/176 , H04N19/159 , H04N19/577 , H04N19/184
Abstract: Devices, systems and methods for digital video coding, which include decoder side motion vector derivation (DMVD) tools, are described. An exemplary method for video processing includes making a decision, based on a determination that a current block of a video is coded using a multi-hypothesis prediction mode, regarding a selective enablement of a DMVD tool for the current block, wherein the DMVD tool derives a refinement of motion information signaled in a bitstream representation of the video; and performing, based on the decision, a conversion between the current block and the bitstream representation.
-
公开(公告)号：US20210029374A1
公开(公告)日：2021-01-28
申请号：US17071139
申请日：2020-10-15
Inventor： Li ZHANG , Kai ZHANG , Hongbin LIU , Yue WANG
IPC: H04N19/52 , H04N19/184 , H04N19/176 , H04N19/139
Abstract: Devices, systems and methods for encoding and decoding digital video historical information such as tables containing coding candidates are described. In a representative aspect, a method for video processing includes maintaining an Advanced Motion Vector Prediction (AMVP) candidate list for a conversion between a video block of a video and a bitstream representation of the video with a motion vector precision of M-Pel or sub-pel selected from multiple available motion vector precisions, M being a positive integer. The method also includes comparing an AMVP candidate associated with the video block with existing AMVP candidates in the AMVP candidate list, adding the AMVP candidate to the AMVP candidate list upon determining that the AMVP candidate is different than the existing candidates, and performing the conversion based on the AMVP candidate list.
-
公开(公告)号：US20210029351A1
公开(公告)日：2021-01-28
申请号：US17071084
申请日：2020-10-15
Inventor： Li ZHANG , Kai ZHANG , Hongbin LIU , Yue WANG
IPC: H04N19/105 , H04N19/159 , H04N19/513 , H04N19/176 , G06F1/03
Abstract: Devices, systems and methods for encoding and decoding digital video using historical information containing coding candidates are described. In a representative aspect, a method for video processing includes maintaining one or more tables of motion candidates during a conversion between a current video block and a bitstream representation of a video including the current video block, determining that the current video block is coded using a merge mode or an Advanced Motion Vector Prediction (AMVP) mode, and performing, based on the determining, the conversion between the current video block of and the bitstream representation of the video using one or more tables of motion candidates.
-
公开(公告)号：US20250080719A1
公开(公告)日：2025-03-06
申请号：US18286210
申请日：2022-04-08
Inventor： Na ZHANG , Kai ZHANG , Li ZHANG , Hongbin LIU , Zhipin DENG , Yang WANG
IPC: H04N19/105 , H04N19/159 , H04N19/176 , H04N19/52 , H04N19/54
Abstract: Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: constructing a list of merge candidates for a target block of a video in a coding mode based on motion vector difference (MVD); reordering the list of merge candidates for the target block; and performing a conversion between the target block and a bitstream of the video based on the reordered list of merge candidates. Compared with the conventional solution, the proposed method can advantageously improve the coding efficiency.
-
公开(公告)号：US20240214565A1
公开(公告)日：2024-06-27
申请号：US18284511
申请日：2022-03-31
Inventor： Hongbin LIU , Li ZHANG , Kui FAN , Xiaolong JIANG , Haibin YIN , Yuwen HE , Yingming FAN
IPC: H04N19/117 , H04N19/137 , H04N19/172 , H04N19/176 , H04N19/80
CPC classification number: H04N19/117 , H04N19/137 , H04N19/172 , H04N19/176 , H04N19/80
Abstract: Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: obtaining a reference picture for a target picture of a video; determining whether the reference picture is to be used for filtering the target picture based at least in part on a difference between the reference picture and the target picture; and in accordance with a determination that the reference picture is to be used for filtering the target picture, performing temporal filtering on the target picture based on the reference picture. Compared with the conventional solution, the proposed method can advantageously improve the coding speed and efficiency.
-
-
-
-
-
-
-
-
-
Search Results
456
records
(took 0.028 seconds)
