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公开(公告)号：US20230077431A1
公开(公告)日：2023-03-16
申请号：US17941895
申请日：2022-09-09
发明人： Hong Zhang , Haitao Yang
IPC分类号： H04N19/513 , H04N19/119 , H04N19/139 , H04N19/176 , H04N19/196 , H04N19/52 , H04N19/53 , H04N19/54 , H04N19/57 , H04N19/573
摘要： The present disclosure provides a video picture coding method, a video picture decoding method, a coding device, and a decoding device. The method includes: determining a distance between control points for an affine picture block; determining a motion vector difference for the affine picture block, motion vectors of the control points being used to determine the motion vector difference; and performing coding processing on the affine picture block over a size that includes a horizontal length and a vertical length, wherein the horizontal length and the vertical length vary based on the distance between the control points, the motion vector difference, and a motion vector precision.
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公开(公告)号：US11496732B2
公开(公告)日：2022-11-08
申请号：US17234976
申请日：2021-04-20
发明人： Huanbang Chen , Hong Zhang , Haitao Yang
IPC分类号： H04N19/105 , H04N19/139 , H04N19/176 , H04N19/517
摘要： The present disclosure provides a video image decoding method in which a size of an affine motion compensation image sub-block in an affine image block is determined based on a motion vector difference, motion vector precision, a distance between control points in the affine image block, and a size of the affine image block, where the size includes a length in a horizontal direction and a length in a vertical direction, so that a length of the affine image block in a horizontal/vertical direction is an integer multiple of the length of the affine motion compensation image sub-block in the horizontal/vertical direction.
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公开(公告)号：US11490115B2
公开(公告)日：2022-11-01
申请号：US17122844
申请日：2020-12-15
发明人： Hong Zhang , Haitao Yang
IPC分类号： H04N19/119 , H04N19/139 , H04N19/176 , H04N19/196 , H04N19/52 , H04N19/53 , H04N19/54 , H04N19/57 , H04N19/82 , H04N19/513 , H04N19/573
摘要： The present disclosure provides a video picture coding method, a video picture decoding method, a coding device, and a decoding device. The method includes: determining a distance between control points for an affine picture block; determining a motion vector difference for the affine picture block, motion vectors of the control points being used to determine the motion vector difference; and performing coding processing on the affine picture block over a size that includes a horizontal length and a vertical length, wherein the horizontal length and the vertical length vary based on the distance between the control points, the motion vector difference, and a motion vector precision.
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公开(公告)号：US11323736B2
公开(公告)日：2022-05-03
申请号：US15923434
申请日：2018-03-16
发明人： Huanbang Chen , Sixin Lin , Hong Zhang
IPC分类号： H04N19/52 , H04N19/70 , H04N19/105 , H04N19/107 , H04N19/44 , H04N19/54
摘要： An image prediction method and apparatus is disclosed. The image prediction method includes: determining, according to information about adjacent image units adjacent to a to-be-processed image unit, whether a set of candidate prediction modes for the to-be-processed image unit includes an affine merge mode, where the affine merge mode indicates that respective predicted images of the to-be-processed image unit and the adjacent image units of the to-be-processed image unit are obtained by using a same affine model; parsing a bitstream to obtain first indication information; determining, in the set of candidate prediction modes, a prediction mode for the to-be-processed image unit according to the first indication information; and determining a predicted image of the to-be-processed image unit according to the prediction mode. The method reduces a bit rate of encoding a prediction mode, thereby improving encoding efficiency.
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公开(公告)号：US20210243432A1
公开(公告)日：2021-08-05
申请号：US17234976
申请日：2021-04-20
发明人： Huanbang Chen , Hong Zhang , Haitao Yang
IPC分类号： H04N19/105 , H04N19/139 , H04N19/176 , H04N19/517
摘要： The present disclosure provides a video image decoding method in which a size of an affine motion compensation image sub-block in an affine image block is determined based on a motion vector difference, motion vector precision, a distance between control points in the affine image block, and a size of the affine image block, where the size includes a length in a horizontal direction and a length in a vertical direction, so that a length of the affine image block in a horizontal/vertical direction is an integer multiple of the length of the affine motion compensation image sub-block in the horizontal/vertical direction.
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公开(公告)号：US11949908B2
公开(公告)日：2024-04-02
申请号：US17941895
申请日：2022-09-09
发明人： Hong Zhang , Haitao Yang
IPC分类号： H04N19/52 , H04N19/119 , H04N19/139 , H04N19/176 , H04N19/196 , H04N19/513 , H04N19/53 , H04N19/54 , H04N19/57 , H04N19/573 , H04N19/82
CPC分类号： H04N19/521 , H04N19/119 , H04N19/139 , H04N19/176 , H04N19/196 , H04N19/52 , H04N19/53 , H04N19/54 , H04N19/57 , H04N19/573 , H04N19/82
摘要： The present disclosure provides a video picture coding method, a video picture decoding method, a coding device, and a decoding device. The method includes: determining a distance between control points for an affine picture block; determining a motion vector difference for the affine picture block, motion vectors of the control points being used to determine the motion vector difference; and performing coding processing on the affine picture block over a size that includes a horizontal length and a vertical length, wherein the horizontal length and the vertical length vary based on the distance between the control points, the motion vector difference, and a motion vector precision.
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公开(公告)号：US11039127B2
公开(公告)日：2021-06-15
申请号：US16786660
申请日：2020-02-10
发明人： Huanbang Chen , Hong Zhang , Haitao Yang
IPC分类号： H04N19/105 , H04N19/139 , H04N19/176 , H04N19/517
摘要： The present disclosure provides a video image decoding method in which a size of an affine motion compensation image sub-block in an affine image block is determined based on a motion vector difference, motion vector precision, a distance between control points in the affine image block, and a size of the affine image block, where the size includes a length in a horizontal direction and a length in a vertical direction, so that a length of the affine image block in a horizontal/vertical direction is an integer multiple of the length of the affine motion compensation image sub-block in the horizontal/vertical direction.
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公开(公告)号：US10924413B2
公开(公告)日：2021-02-16
申请号：US16452821
申请日：2019-06-26
发明人： Feng Yuan , Hong Zhang , Kai Chen
IPC分类号： H04L12/803 , H04L12/801
摘要： Embodiments of this application provide a transmission path determining method and apparatus, where the method includes: determining that a current path corresponding to a flow to which a to-be-transmitted packet belongs is congested; and determining a target path for the to-be-transmitted packet based on a path congestion information table, and adding information about the target path to the to-be-transmitted packet, so as to transmit the to-be-transmitted packet based on the target path, where a congestion degree of the target path is less than a congestion degree of the current path, each entry of the path congestion information table includes a transmission path and congestion information corresponding to the transmission path, and the congestion information is used to indicate a congestion degree of the transmission path.
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公开(公告)号：US20200154118A1
公开(公告)日：2020-05-14
申请号：US16744987
申请日：2020-01-16
发明人： Haitao Yang , Hong Zhang , Shan Liu
IPC分类号： H04N19/30 , H04N19/117 , H04N19/186 , H04N19/176
摘要： A chroma prediction method includes: obtaining luma information and chroma information of a to-be-processed image block, first processing information, and second processing information, where the first processing information indicates a downsampling processing manner used for a luma component of the to-be-processed image block, and the second processing information indicates a downsampling processing manner used for a chroma component of the to-be-processed image block; reconstructing a transient luma block of the to-be-processed image block based on the luma information of the to-be-processed image block, where a resolution of the transient luma block is determined by using a sampling format of the to-be-processed image block and the first processing information; and obtaining a prediction block of a transient chroma block of the to-be-processed image block based on the resolution of the transient luma block, the sampling format of the to-be-processed image block, and the second processing information.
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公开(公告)号：US10554997B2
公开(公告)日：2020-02-04
申请号：US15797728
申请日：2017-10-30
发明人： Hong Zhang , Haitao Yang
IPC分类号： H04N19/513 , H04N19/139 , H04N19/176 , H04N19/573 , H04N19/58 , H04N19/172 , H04N19/182 , H04N19/44 , H04N19/51
摘要： A video coding method includes obtaining a first motion vector field (MVF) set, obtaining a plurality of second MVFs according to the first MVF set and based on a preset vector operation method, determining a motion compensation prediction (MCP) signal of the target sub picture block from M MCP reference pictures according to the plurality of second MVFs and based on an MCP algorithm, obtaining a prediction residual of the target sub picture block according to a picture signal of the target sub picture block and the MCP signal of the target sub picture block, performing coding processing on the prediction residual of the target sub picture block to obtain a coded signal of the prediction residual of the target sub picture block, and sending the coded signal of the prediction residual of the target sub picture block to a peer decoder.
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