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61.发明授权公开(公告)号：US11979581B2
公开(公告)日：2024-05-07
申请号：US18163743
申请日：2023-02-02
IPC分类号： H04N19/137 , H04N19/119 , H04N19/176 , H04N19/52
CPC分类号： H04N19/137 , H04N19/119 , H04N19/176 , H04N19/52
摘要： The present disclosure concerns a method and a device for encoding or decoding video data. It concerns more particularly the encoding according to a particular encoding mode using a decoder side motion vector derivation mode referenced as frame-rate up conversion mode or FRUC mode. It concerns encoding and decoding improvement which reduce the need for memory accesses when using an encoding mode where the motion information is predicted using a decoder side motion vector derivation method.
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62.发明授权公开(公告)号：US11979579B2
公开(公告)日：2024-05-07
申请号：US18163610
申请日：2023-02-02
IPC分类号： H04N19/137 , H04N19/119 , H04N19/176 , H04N19/52
CPC分类号： H04N19/137 , H04N19/119 , H04N19/176 , H04N19/52
摘要： The present disclosure concerns a method and a device for encoding or decoding video data. It concerns more particularly the encoding according to a particular encoding mode using a decoder side motion vector derivation mode referenced as frame-rate up conversion mode or FRUC mode. It concerns encoding and decoding improvement which reduce the need for memory accesses when using an encoding mode where the motion information is predicted using a decoder side motion vector derivation method.
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公开(公告)号：US20240137554A1
公开(公告)日：2024-04-25
申请号：US18531153
申请日：2023-12-06
发明人： Hongbin Liu , Li Zhang , Kai Zhang , Jizheng Xu , Yue Wang
IPC分类号： H04N19/517 , H04N19/105 , H04N19/132 , H04N19/137 , H04N19/139 , H04N19/159 , H04N19/176 , H04N19/196 , H04N19/513 , H04N19/573 , H04N19/577
CPC分类号： H04N19/517 , H04N19/105 , H04N19/132 , H04N19/137 , H04N19/139 , H04N19/159 , H04N19/176 , H04N19/196 , H04N19/521 , H04N19/573 , H04N19/577
摘要： A method for processing a video includes performing a conversion between a current block of visual media data and a corresponding coded representation of the visual media data. The conversion of the current block includes determining whether a use of one or both of a bi-directional optical flow (BIO) technique or a decoder-side motion vector refinement (DMVR) technique to the current block is enabled or disabled. Determining the use of the BIO technique or the DMVR technique is based on a cost criterion associated with the current block.
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64.发明授权公开(公告)号：US11968371B2
公开(公告)日：2024-04-23
申请号：US17534988
申请日：2021-11-24
发明人： Je Won Kang , Eun Yeo , Yong Hwan Kim , Ji Eon Kim
IPC分类号： H04N19/137 , H04N19/105 , H04N19/159 , H04N19/176 , H04N19/597
CPC分类号： H04N19/137 , H04N19/105 , H04N19/159 , H04N19/176 , H04N19/597
摘要： Disclosed is a method of predicting a block vector in a multi-view image, the method including allowing an encoder to determine a reference block of a reference image for a specific block of a depth image or a specific-view image among multi-view images, allowing the encoder to determine block vector information for intra block copy (IBC) of the specific block on the basis of a block vector of the reference block when the reference block is encoded using the IBC, and allowing the encoder to encode the block vector information of the specific block. The reference image of the specific view is an image of another view, and the reference image of the depth image is a texture image corresponding to the depth image.
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公开(公告)号：US11949912B2
公开(公告)日：2024-04-02
申请号：US17844669
申请日：2022-06-20
发明人： Xiaozhen Zheng , Tianliang Fu , Shanshe Wang , Siwei Ma , Weiran Li , Suhong Wang
IPC分类号： H04N19/56 , H04N19/105 , H04N19/119 , H04N19/129 , H04N19/137 , H04N19/139 , H04N19/176 , H04N19/30 , H04N19/513 , H04N19/573 , H04N19/58 , H04N19/96
CPC分类号： H04N19/58 , H04N19/105 , H04N19/119 , H04N19/129 , H04N19/137 , H04N19/139 , H04N19/176 , H04N19/30 , H04N19/513 , H04N19/56 , H04N19/573 , H04N19/96
摘要： A video image processing method includes determining a related block of a current image block according to a motion vector of a target neighboring block, the current image block, and a collocated frame of the current image block, decoding the current image block according to a motion vector of the related block of the current image block, constructing motion vectors of part of control points of the current image block according to neighboring blocks of the part of the control points of the current image block, and adding the motion vectors of the part of the control points of the current image block to a motion vector candidate list of the current image block.
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公开(公告)号：US11936877B2
公开(公告)日：2024-03-19
申请号：US17715571
申请日：2022-04-07
发明人： Chun-Chi Chen , Han Huang , Zhi Zhang , Yao-Jen Chang , Yan Zhang , Vadim Seregin , Marta Karczewicz
IPC分类号： H04N19/176 , H04N19/105 , H04N19/132 , H04N19/137
CPC分类号： H04N19/137 , H04N19/105 , H04N19/132 , H04N19/176
摘要： A video decoder can be configured to determine that a current block in a current picture of the video data is coded in an affine prediction mode; determine one or more control-point motion vectors (CPMVs) for the current block; identify an initial prediction block for the current block in a reference picture using the one or more CPMVs; determine a current template for the current block in the current picture; and determine an initial reference template for the initial prediction block in the reference picture; and perform a motion vector refinement process to determine a modified prediction block based on a comparison of the current template to the initial reference template.
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67.发明公开公开(公告)号：US20240089491A1
公开(公告)日：2024-03-14
申请号：US18511610
申请日：2023-11-16
发明人： Li Zhang , Kai Zhang , Hongbin Liu , Yue Wang
IPC分类号： H04N19/52 , H04N19/105 , H04N19/137 , H04N19/159 , H04N19/176 , H04N19/184 , H04N19/30 , H04N19/513 , H04N19/56
CPC分类号： H04N19/52 , H04N19/105 , H04N19/137 , H04N19/159 , H04N19/176 , H04N19/184 , H04N19/30 , H04N19/513 , H04N19/56
摘要： Devices, systems and methods for the simplification of sub-block motion candidate lists for video coding are described. In a representative aspect, a method for video processing includes determining, during a conversion between a current block and a bitstream representation of the current block, a temporal motion vector prediction candidate for a sub-block of the current block. The temporal motion vector prediction candidate is completely determined based on K neighboring blocks of the current block, K being a positive integer. The method also includes performing the conversion based on the temporal motion vector prediction candidate for the sub-block.
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公开(公告)号：US11930183B2
公开(公告)日：2024-03-12
申请号：US17371488
申请日：2021-07-09
发明人： Alexander Alexandrovich Karabutov , Timofey Mikhailovich Solovyev , Roman Igorevich Chernyak , Sergey Yurievich Ikonin , Jianle Chen
IPC分类号： H04N19/137 , H04N19/105 , H04N19/159 , H04N19/176
CPC分类号： H04N19/137 , H04N19/105 , H04N19/159 , H04N19/176
摘要： A method of determining a distance table of a merge with motion vector difference (MMVD) mode, wherein the method comprises determining a reference picture from at least one reference picture list of a current processing unit based on at least one parameter of the reference picture, and obtaining the distance table for the current processing unit based on the reference picture, wherein the at least one parameter of the reference picture comprises a picture order count (POC) number of the reference picture, a number of MMVD blocks of the reference picture, a reference picture list index of the reference picture, a reference picture index of the reference picture, and a quantization parameter (QP) of the reference picture.
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公开(公告)号：US11930182B2
公开(公告)日：2024-03-12
申请号：US17359890
申请日：2021-06-28
发明人： Kai Zhang , Li Zhang , Hongbin Liu , Yue Wang
IPC分类号： H04N19/137 , H04N19/105 , H04N19/119 , H04N19/176 , H04N19/186
CPC分类号： H04N19/137 , H04N19/105 , H04N19/119 , H04N19/176 , H04N19/186
摘要： A method for processing video data, including: deriving one or more motion vectors for a first set of sub-blocks belonging to a first dividing pattern of a current video block of a video; and performing, based on the one or more motion vectors, a conversion between the current video block and a bitstream of the video.
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公开(公告)号：US20240080450A1
公开(公告)日：2024-03-07
申请号：US18500927
申请日：2023-11-02
申请人： Electronics and Telecommunications Research Institute , UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
发明人： Jung Won KANG , Ha Hyun LEE , Sung Chang LIM , Jin Ho LEE , Hui Yong KIM , Gwang Hoon PARK , Tae Hyun KIM , Dae Young LEE
IPC分类号： H04N19/137 , H04N19/105 , H04N19/169 , H04N19/176
CPC分类号： H04N19/137 , H04N19/105 , H04N19/176 , H04N19/1883
摘要： The present invention discloses an image decoding method, the method including generating a candidate list including motion information derived from a spatial neighboring block and a temporal neighboring block adjacent to a current block; deriving motion information of the current block using the candidate list; generating a prediction block of the current block using the derived motion information; and updating the derived motion information in a motion information list, wherein the generating of the candidate list is performed in such a manner as to include at least one information of the motion information included in the updated motion information list in a block decoded before the current block.
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