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公开(公告)号：US20240214587A1
公开(公告)日：2024-06-27
申请号：US18596614
申请日：2024-03-05
Inventor： Wei CHEN , Xiaoyu XIU , Yi-Wen CHEN , Hong-Jheng JHU , Che-Wei KUO , Ning YAN , Xianglin WANG , Bing YU
IPC: H04N19/176 , H04N19/129 , H04N19/139
CPC classification number: H04N19/176 , H04N19/129 , H04N19/139
Abstract: A method of video coding, an apparatus, and a non-transitory computer-readable storage medium thereof are provided. The method includes obtaining one or more affine candidates from a plurality of non-adjacent neighbor blocks that are non-adjacent to a current block. The method may further include obtaining one or more control point motion vectors (CPMVs) for the current block based on the one or more affine candidates.
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公开(公告)号：US20240195996A1
公开(公告)日：2024-06-13
申请号：US18424153
申请日：2024-01-26
Inventor： Che-Wei KUO , Xiaoyu XIU , Wei CHEN , Xianglin WANG , Yi-Wen CHEN , Hong-Jheng JHU , Ning YAN , Bing YU
IPC: H04N19/44 , H04N19/186 , H04N19/70
CPC classification number: H04N19/44 , H04N19/186 , H04N19/70
Abstract: An electronic apparatus performs a method of decoding video data, including: receiving, a plurality of frames, each including a first component and a second component; determining, for a first frame, one or more classifiers for the second component respectively from one or more samples of the first component associated with a respective sample of the second component; and when a received syntax element indicates that differential pulse-code modulation (DPCM) is enabled for signalling a first group of differential sample offsets for the second component of a second frame according to the one or more classifiers: determining a second group of sample offsets for the second component of the second frame by adding the first group of differential sample offsets of the second frame to a first group of sample offsets for the second component of the first frame according to the one or more classifiers.
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公开(公告)号：US20240048700A1
公开(公告)日：2024-02-08
申请号：US18378120
申请日：2023-10-09
Inventor： Xiaoyu XIU , Wei CHEN , Che-Wei KUO , Yi-Wen CHEN , Hong-Jheng JHU , Xianglin WANG , Bing YU
IPC: H04N19/119 , H04N19/176 , H04N19/70 , H04N19/139 , H04N19/132 , H04N19/109 , H04N19/513
CPC classification number: H04N19/119 , H04N19/176 , H04N19/70 , H04N19/139 , H04N19/132 , H04N19/109 , H04N19/513
Abstract: Methods, apparatuses, and non-transitory computer-readable storage mediums are provided for decoding a video block in geometry partition mode (GPM). The method includes: partitioning the video block into first and second geometric partitions; obtaining a first prediction list for the first geometric partition and obtaining a second prediction list for the second geometric partition; obtaining motion vectors (MVs) for the first and second geometric partitions by applying a GPM with explicit motion signaling (EMS) to the first and second geometric partitions based on the first and second prediction lists; and obtaining prediction samples of the first and second geometric partitions based on the MVs.
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公开(公告)号：US20230379500A1
公开(公告)日：2023-11-23
申请号：US18230000
申请日：2023-08-03
Inventor： Hong-Jheng JHU , Xiaoyu XIU , Yi-Wen CHEN , Wei CHEN , Che-Wei KUO , Xianglin WANG , Bing YU
Abstract: Methods, apparatuses, and non-transitory computer-readable storage mediums are provided for video coding. The method for video coding includes: receiving, by a decoder, a Sequence Parameter Set (SPS) range extension flag that indicates whether a syntax structure, sps_range_extension, is present in Slice Head (SH) Raw Byte Sequence Payload (RBSP) syntax structures based on a value of the SPS range extension flag.
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公开(公告)号：US20230379480A1
公开(公告)日：2023-11-23
申请号：US18228508
申请日：2023-07-31
Inventor： Che-Wei KUO , Xiaoyu XIU , Wei CHEN , Xianglin WANG , Yi-Wen CHEN , Hong-jheng JHU , Bing YU
IPC: H04N19/186 , H04N19/172 , H04N19/132 , H04N19/117 , H04N19/82 , H04N19/136 , H04N19/119 , H04N19/184
CPC classification number: H04N19/186 , H04N19/172 , H04N19/132 , H04N19/117 , H04N19/82 , H04N19/136 , H04N19/119 , H04N19/184
Abstract: A method of decoding video data and an electronic apparatus for performing the method are provided. The method includes: receiving, from the video signal, a picture frame that includes a first component, and a second component; determining a classifier for the first component based on a first set of one or more samples of the second component associated with a respective sample of the first component; determining a sample offset for the respective sample of the first component according to the classifier; and modifying a value of the respective sample of the first component based on the determined sample offset, the first component being a luma component and the second component being a first chroma component.
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公开(公告)号：US20230345003A1
公开(公告)日：2023-10-26
申请号：US18209462
申请日：2023-06-13
Inventor： Wei CHEN , Xiaoyu XIU , Yi-Wen CHEN , Hong-Jheng JHU , Che-Wei KUO , Xianglin WANG , Bing YU
IPC: H04N19/124 , H04N19/147
CPC classification number: H04N19/124 , H04N19/147
Abstract: A method and an apparatus for image filtering in video coding using a neural network are provided. The method includes: loading, a plurality of quantization parameter (QP) map (QpMap) values at a plurality of QpMap channels into the neural network; and adjusting, according to a QP scaling factor, the plurality of QpMap values for the neural network to learn and filter a current input frame to the neural network.
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公开(公告)号：US20230291906A1
公开(公告)日：2023-09-14
申请号：US18198253
申请日：2023-05-16
Inventor： Hong-Jheng JHU , Xiaoyu XIU , Yi-Wen CHEN , Wei CHEN , Che-Wei KUO , Xianglin WANG , Bing YU
IPC: H04N19/13 , H04N19/124 , H04N19/46
CPC classification number: H04N19/13 , H04N19/124 , H04N19/46
Abstract: Methods, apparatuses, and non-transitory computer-readable storage mediums are provided for video encoding. An encoder may receive a video input. The encoder may obtain a quantization parameter based on the video input. The encoder may derive a rice parameter based on at least one predefined threshold, a coding bit-depth, and the quantization parameter. The encoder may entropy encode a video bitstream based on the rice parameter.
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公开(公告)号：US20230109849A1
公开(公告)日：2023-04-13
申请号：US18064831
申请日：2022-12-12
Inventor： Xiaoyu XIU , Yi-Wen CHEN , Tsung-Chuan MA , Hong-Jheng JHU , Wei CHEN , Che-Wei KUO , Xianglin WANG , Bing YU
IPC: H04N19/12 , H04N19/70 , H04N19/132 , H04N19/186 , H04N19/30 , H04N19/60 , H04N19/18 , H04N19/124
Abstract: An electronic apparatus performs a method of coding video data. The method comprises: receiving, from the bitstream, syntax elements associated with a coding unit, wherein the syntax elements include a first coded block flag (CBF) for residual samples of a first chroma component, a second CBF for residual samples of a second chroma component, and a third syntax element indicating whether adaptive color transform (ACT) is applied to the coding unit; determining whether to perform the chroma residual scaling to the residual samples of the chroma components according to the first CBF, the second CBF, and the third syntax element; in accordance with a determination to perform the chroma residual scaling to the residual samples of the first and second chroma components, scaling the residual samples of the at least one of the first and second chroma components based on a corresponding scaling parameter.
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公开(公告)号：US20220272375A1
公开(公告)日：2022-08-25
申请号：US17676806
申请日：2022-02-21
Inventor： Xiaoyu XIU , Che-Wei KUO , Wei CHEN , Yi-Wen CHEN , Hong-Jheng JHU , Xianglin WANG , Bing YU
IPC: H04N19/517 , H04N19/105 , H04N19/159 , H04N19/176
Abstract: A method for video encoding is provided. The method includes: partitioning a frame of video data into a plurality of blocks; obtaining a current prediction of a current block of the plurality of blocks using one or more motion vectors of the current block; obtaining one or more collocated predictions of the current block using one or more motion vectors of one or more neighbor blocks of the current block in respective one or more blending areas, where each of the one or more blending areas is at least part of the current block and adjustable based at least on the partitioning; and obtaining a combined prediction of the current block by combing the current prediction with the one or more collocated predictions.
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公开(公告)号：US20250047897A1
公开(公告)日：2025-02-06
申请号：US18806666
申请日：2024-08-15
Inventor： Wei CHEN , Xiaoyu XIU , Yi-Wen CHEN , Hong-Jheng JHU , Che-Wei KUO , Ning YAN , Xianglin WANG , Bing YU
IPC: H04N19/52 , H04N19/105 , H04N19/129 , H04N19/176 , H04N19/96
Abstract: Methods for video decoding and encoding, apparatuses and non-transitory storage media are provided. In one decoding method, the decoder obtains a first restricted neighbor area of a current block as a first scanning area and a second restricted neighbor area of the current block as a second scanning area, where the first restricted neighbor area and the second restricted neighbor area are separate. Furthermore, the decoder obtains one or more motion vector (MV) candidates from a plurality of non-adjacent neighbor blocks to the current block based on the first and second scanning areas. Moreover, the decoder obtains one or more control point motion vectors (CPMVs) for the current block based on the one or more MV candidates.
