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公开(公告)号:US20210211666A1
公开(公告)日:2021-07-08
申请号:US17212777
申请日:2021-03-25
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Han GAO , Yin ZHAO , Semih ESENLIK
IPC: H04N19/119 , H04N19/132 , H04N19/105 , H04N19/176
Abstract: This application provides an example method for processing video or image data. The method includes obtaining a non-overlapped region. The method also includes obtaining a transform block (TB) corresponding to a coding block. The method further includes determining whether the TB cross a border of the non-overlapped region or not. The method also includes, if the TB cross a border of the non-overlapped region, splitting the TB to obtain at least two sub-TBs according to the border of the non-overlapped region.
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公开(公告)号:US20210136372A1
公开(公告)日:2021-05-06
申请号:US17144976
申请日:2021-01-08
Applicant: Huawei Technologies Co., Ltd.
Inventor: Han GAO , Jianle CHEN , Semih ESENLIK , Zhijie ZHAO , Anand Meher KOTRA
IPC: H04N19/119 , H04N19/192 , H04N19/96 , H04N19/176
Abstract: A partitioning method comprises determining whether a current block of a picture is a boundary block and whether the size of the current block is larger than a minimum allowed quadtree leaf node size; and if the current block is the boundary block and the size of the current block is not larger than the minimum allowed quadtree leaf node size (MinQTSize), applying forced binary tree (BT) partitioning to the current block. A method comprises making a determination that a current block of a picture is a boundary block and that a size of the current block is less than or equal to a minimum allowed quadtree (QT) leaf node size (MinQTSize); and applying, in response to the determination, forced binary tree (BT) partitioning to the current block.
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公开(公告)号:US20200236359A1
公开(公告)日:2020-07-23
申请号:US16844796
申请日:2020-04-09
Applicant: Huawei Technologies Co., Ltd.
Inventor: Han GAO , Zhijie ZHAO , Semih ESENLIK , Anand Meher KOTRA , Shan LIU
IPC: H04N19/119 , H04N19/96 , H04N19/30 , H04N19/46 , H04N19/172
Abstract: An apparatus and a method for image coding with boundary partitioning processing are disclosed. In image coding, and particularly in video coding, images are typically split into smaller blocks or units that are then processed. Effective splitting or partitioning has an important role in effective image coding. The apparatus and method use a particular boundary partitioning processing for improving splitting, which can be used in improving compression performance. The boundary partitioning reduces unnecessary partitioning on the frame boundary and reduces complexity of a forced partitioning procedure.
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公开(公告)号:US20240406404A1
公开(公告)日:2024-12-05
申请号:US18795684
申请日:2024-08-06
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Han GAO , Semih ESENLIK , Elena Alexandrovna ALSHINA , Biao WANG , Anand Meher KOTRA
IPC: H04N19/137 , H04N19/105 , H04N19/132 , H04N19/176
Abstract: A motion information storing method comprises: determining a distance between a sample set in the current block and the common boundary; and comparing the distance with a threshold to determine whether third motion information is stored for the sample set, wherein the third motion information is derived by the first motion information and the second motion information.
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公开(公告)号:US20240373025A1
公开(公告)日:2024-11-07
申请号:US18764687
申请日:2024-07-05
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Biao WANG , Semih ESENLIK , Anand Meher KOTRA , Han GAO , Elena Alexandrovna ALSHINA
IPC: H04N19/132 , H04N19/159 , H04N19/176 , H04N19/186
Abstract: A method of coding implemented by a decoding device, comprising obtaining a video bitstream; decoding the video bitstream to obtain an initial intra prediction mode value for chroma component of a current coding block; determining whether a ratio between a width for luma component of the current coding block and a width for chroma component of the current coding block is equal to a threshold or not; obtaining a mapped intra prediction mode value for chroma component of the current coding block according to a predefined mapping relationship and the initial intra prediction mode value, when it's determined that the ratio is equal to the threshold; obtaining a prediction sample value for chroma component of the current coding block according to the mapped intra prediction mode value.
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公开(公告)号:US20240323427A1
公开(公告)日:2024-09-26
申请号:US18660485
申请日:2024-05-10
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Han GAO , Semih ESENLIK , Biao WANG , Anand Meher KOTRA , Jianle CHEN
IPC: H04N19/513 , H04N19/176
CPC classification number: H04N19/513 , H04N19/176
Abstract: The present disclosure provides methods and devices of construct a candidate merge list for Intra block copy (IBC) mode, the method comprising: inserting a block vector of a left neighboring block of a current block into an initial merge list, when the left neighboring block is available and the left neighboring block is using IBC mode; inserting a block vector of an above neighboring block of the current block into the initial merge list, when the above neighboring block is available, the above neighboring block is using IBC mode and the block vector of the above neighboring block is not same as the block vector of the left neighboring block; inserting a block vector of the last candidate in a history based motion vector predictor (HMVP) into the initial merge list; obtaining a block vector of the current block according to the initial merge list.
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17.
公开(公告)号:US20240303470A1
公开(公告)日:2024-09-12
申请号:US18666930
申请日:2024-05-17
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Zhongwei WANG , Rongchen ZHU , Han GAO
IPC: G06N3/0464 , G06N3/0455 , G06N3/08 , G06T1/20
CPC classification number: G06N3/0464 , G06N3/0455 , G06N3/08 , G06T1/20
Abstract: This application discloses a construction method and apparatus for a bipartite graph, and a display method and apparatus for a bipartite graph. The construction method includes: searching a computational graph for at least one cross-communication edge corresponding to a first communication node, where the first communication node is one of M communication nodes included in the computational graph, the first communication node corresponds to P predecessor nodes and Q successor nodes, each of the at least one cross-communication edge indicates a communication path between one of the P predecessor nodes and one of the Q successor nodes, and no cross-communication edge passes through the M communication nodes; and cutting cross-communication edges respectively corresponding to the M communication nodes, and performing an aggregation operation to obtain the bipartite graph, where any two of the M communication nodes are connected without an edge in the bipartite graph.
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18.
公开(公告)号:US20240283956A1
公开(公告)日:2024-08-22
申请号:US18440003
申请日:2024-02-13
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Biao WANG , Semih ESENLIK , Anand Meher KOTRA , Elena Alexandrovna ALSHINA , Han GAO
IPC: H04N19/31 , H04N19/119 , H04N19/136 , H04N19/176 , H04N19/187 , H04N19/70
CPC classification number: H04N19/31 , H04N19/136 , H04N19/187 , H04N19/70 , H04N19/119 , H04N19/176
Abstract: Signalling of syntax elements in a sequence parameter set of a video bitstream is addressed. Particularly, it is provided a method of decoding a video bitstream wherein a sequence parameter set, SPS, is coded that contains syntax elements that apply to a video sequence, the method comprising obtaining a value of a first syntax element from the SPS used to specify whether a decoded picture buffer, DPB, parameters syntax structure is present in the SPS and obtaining a value of a second syntax element from the SPS, at least when determining that the value of the first syntax element specifies that the DPB parameters syntax structure is present in the SPS, used to specify the presence of a DPB syntax element in the DPB parameters syntax structure, wherein the DPB syntax element is applied to a temporal sublayer except for the highest temporal sublayer in the video sequence.
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19.
公开(公告)号:US20240205387A1
公开(公告)日:2024-06-20
申请号:US18396191
申请日:2023-12-26
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Biao WANG , Anand Meher KOTRA , Semih ESENLIK , Han GAO , Jianle CHEN
IPC: H04N19/105 , H04N19/117 , H04N19/159 , H04N19/176 , H04N19/186 , H04N19/46 , H04N19/82
CPC classification number: H04N19/105 , H04N19/117 , H04N19/159 , H04N19/176 , H04N19/186 , H04N19/46 , H04N19/82
Abstract: Apparatuses and methods for encoding and decoding a video are provided. The method includes determining whether at least one of two blocks of an image in a video is predicted with a combined inter-intra prediction (CIIP), where the two blocks include a first block (block Q) and a second block (block P). There is a boundary between the two blocks. The method further includes setting a boundary strength (Bs) for the boundary to a first value when at least one of the two blocks is predicted with the CHIP, and performing deblocking filter based on the Bs.
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公开(公告)号:US20230217025A1
公开(公告)日:2023-07-06
申请号:US18168188
申请日:2023-02-13
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor: Han GAO , Semih ESENLIK , Jianle CHEN , Zhijie ZHAO , Anand Meher KOTRA , Biao WANG
IPC: H04N19/119 , H04N19/176 , H04N19/96 , H04N19/70
CPC classification number: H04N19/119 , H04N19/176 , H04N19/96 , H04N19/70
Abstract: The present disclosure relates to methods and devices to be employed for encoding and decoding of image or video signal. They include determination of whether or not the size of a current block is larger than a minimum allowed quadtree leaf node size. If the size of the current block is not larger than the minimum allowed quadtree leaf node size, multi-type tree splitting is applied to the current block. The minimum allowed quadtree leaf node size is not larger than a maximum allowed binary tree root node size or the minimum allowed quadtree leaf node size is not larger than a maximum allowed ternary tree root node size.
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