公开(公告)号：US12126841B2

公开(公告)日：2024-10-22

申请号：US17940374

申请日：2022-09-08

申请人： TENCENT AMERICA LLC

发明人： Wen Gao ,  Xiaozhong Xu ,  Shan Liu

IPC分类号： H04N19/88 ,  H04N19/105 ,  H04N19/136 ,  H04N19/172 ,  H04N19/189

CPC分类号： H04N19/88 ,  H04N19/105 ,  H04N19/136 ,  H04N19/172 ,  H04N19/189

摘要： Systems, devices, and methods for performing feature compression, including obtaining an input video; obtaining a feature map corresponding to the input video, the feature map including a plurality of feature channels; reordering the plurality of feature channels based on at least one characteristic of the plurality of feature channels; compressing the reordered plurality of feature channels; and generating an encoded bitstream based on the compressed and reordered plurality of feature channels.

公开(公告)号：US12069286B2

公开(公告)日：2024-08-20

申请号：US18106688

申请日：2023-02-07

申请人： SK TELECOM CO., LTD.

发明人： Jae Il Kim ,  Sun Young Lee

IPC分类号： H04N19/46 ,  H04N19/176 ,  H04N19/189 ,  H04N19/70

CPC分类号： H04N19/46 ,  H04N19/176 ,  H04N19/189 ,  H04N19/70

摘要： A coding tool setting method and a video decoding apparatus using the same are disclosed. An embodiment of the present invention relates to a method for setting whether or not to use a coding tool, and provides a coding tool setting method comprising the steps of: decoding, from a bitstream, a profile syntax element indicating a target profile among available profiles and a coding tool syntax element for configurable coding tools, the coding tool syntax element indicating whether or not to apply the coding tool; and setting, on the basis of the coding tool syntax element, target coding tools that are coding tools included in the target profile to be on or off.

公开(公告)号：US20240275981A1

公开(公告)日：2024-08-15

申请号：US18627969

申请日：2024-04-05

申请人： B1 INSTITUTE OF IMAGE TECHNOLOGY, INC.

发明人： Ki Baek KIM

IPC分类号： H04N19/137 ,  G06T9/00 ,  H04N19/159 ,  H04N19/176 ,  H04N19/189 ,  H04N19/46 ,  H04N19/507

CPC分类号： H04N19/137 ,  G06T9/004 ,  H04N19/159 ,  H04N19/176 ,  H04N19/189 ,  H04N19/46 ,  H04N19/507

摘要： An image encoding/decoding method and device, according to the present invention, comprises the steps of: configuring a motion information candidate list of a target block; selecting a candidate index from the motion information candidate list; deriving an offset for adjusting a motion vector; and recovering a motion vector of the target block through a predicted motion vector recovered on the basis of the offset.

公开(公告)号：US20240205430A1

公开(公告)日：2024-06-20

申请号：US18397737

申请日：2023-12-27

申请人： Apple Inc.

发明人： Khaled Mammou ,  David Flynn ,  Alexandros Tourapis ,  Jungsun Kim

IPC分类号： H04N19/20 ,  G06T9/00 ,  G06T9/40 ,  H04N19/119 ,  H04N19/12 ,  H04N19/124 ,  H04N19/136 ,  H04N19/176 ,  H04N19/189 ,  H04N19/50 ,  H04N19/61 ,  H04N19/64

CPC分类号： H04N19/20 ,  G06T9/001 ,  G06T9/40 ,  H04N19/119 ,  H04N19/12 ,  H04N19/124 ,  H04N19/136 ,  H04N19/176 ,  H04N19/189 ,  H04N19/50 ,  H04N19/61 ,  H04N19/647

摘要： An encoder is configured to compress point cloud information using a blocks of nodes determined from a prediction tree. A prediction tree is generated for a point cloud. Segments of the prediction tree are identified. The segments are divided into blocks that are predicted by predecessor blocks within the segments. The blocks of the prediction tree may then be encoded and may be provided for transmission to a decoder that can regenerate the point cloud from the blocks of the prediction tree.

公开(公告)号：US12003760B2

公开(公告)日：2024-06-04

申请号：US18345880

申请日：2023-06-30

申请人： Intel Corporation

发明人： Yunbiao Lin ,  Changliang Wang ,  Ce Wang ,  Yongfa Zhou ,  Bo Zhao ,  Ping Liu ,  Jianwei Yang ,  Zhan Lou ,  Yu Yang ,  Yating Wang ,  Wenyi Tang ,  Bo Qiu

IPC分类号： H04N7/12 ,  H04N19/154 ,  H04N19/167 ,  H04N19/176 ,  H04N19/189 ,  H04N19/52 ,  H04N19/527 ,  H04N21/6587 ,  H04N13/161

CPC分类号： H04N19/527 ,  H04N19/154 ,  H04N19/167 ,  H04N19/176 ,  H04N19/189 ,  H04N19/52 ,  H04N21/6587 ,  H04N13/161

摘要： An embodiment of an adaptive video encoder may include technology to determine headset-related information including at least one of focus-related information and motion-related information, and determine one or more video encode parameters based on the headset-related information. Other embodiments are disclosed and claimed.

公开(公告)号：US20240179298A1

公开(公告)日：2024-05-30

申请号：US18437193

申请日：2024-02-08

申请人： TENCENT AMERICA LLC

发明人： Liang ZHAO ,  Xin ZHAO ,  Xiang Li ,  Shan LIU

IPC分类号： H04N19/103 ,  H04N19/117 ,  H04N19/159 ,  H04N19/176 ,  H04N19/189

CPC分类号： H04N19/103 ,  H04N19/117 ,  H04N19/159 ,  H04N19/176 ,  H04N19/189

摘要： In a method for video decoding, a determination, for a current block that is a non-square block, is made as to whether an angular intra prediction mode for the current block is a wide angle mode that is in a direction outside of a range of directions that spans a bottom left diagonal direction and top right diagonal direction of the current block. When the angular intra prediction mode is the wide angle mode, whether a block size of the non-square block is greater than 32 is determined. When the block size of the non-square block is greater than 32, an intra smoothing filter is enabled and the enabled intra smoothing filter is applied to blocks neighboring the current block to generate filtered blocks. Intra prediction is performed based on the filtered blocks to obtain a characteristic value for the current block.

公开(公告)号：US11962797B2

公开(公告)日：2024-04-16

申请号：US17555291

申请日：2021-12-17

申请人： BEIJING DAJIA INTERNET INFORMATION TECHNOLOGY CO., LTD.

发明人： Yi-Wen Chen ,  Xiaoyu Xiu ,  Tsung-Chuan Ma ,  Xianglin Wang

IPC分类号： H04N19/513 ,  H04N19/132 ,  H04N19/139 ,  H04N19/176 ,  H04N19/189 ,  H04N19/44

CPC分类号： H04N19/513 ,  H04N19/132 ,  H04N19/139 ,  H04N19/176 ,  H04N19/189 ,  H04N19/44

摘要： A method for video coding is provided. The method includes: deriving an initial motion vector (MV) of a current block; deriving a plurality of MV candidates for decoder-side motion vector refinement (DMVR); determining cost values for the initial MV and each of the MV candidates; obtaining updated cost values of both the initial MV and the MV candidates by adjusting at least one of the cost values to favor the initial MV; and deriving a refined MV based on the updated cost values of both the initial MV and the MV candidate.

公开(公告)号：US11956456B2

公开(公告)日：2024-04-09

申请号：US18342324

申请日：2023-06-27

申请人： TENCENT AMERICA LLC

发明人： Guichun Li ,  Xiaozhong Xu ,  Xiang Li ,  Shan Liu

IPC分类号： H04N7/12 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/189 ,  H04N19/423 ,  H04N19/44

CPC分类号： H04N19/44 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/189 ,  H04N19/423

摘要： A method of video encoding includes receiving a merge sharing region including a plurality of coding blocks, constructing a shared merge candidate list for the merge sharing region, and encoding a current inter coded coding block in the merge sharing region based on the shared merge candidate list. The method also includes determining whether to update a history-based motion vector prediction (HMVP) table with motion information of the current inter coded coding block based on whether the current inter coded coding block is inter coded with a merge/skip mode. The method further includes updating the HMVP table with the motion information of the current inter coded coding block when the HMVP table is determined to be updated with the motion information of the current inter coded coding block.

公开(公告)号：US20240107007A1

公开(公告)日：2024-03-28

申请号：US18525099

申请日：2023-11-30

申请人： Beijing Bytedance Network Technology Co., Ltd. ,  Bytedance Inc.

发明人： Kai Zhang ,  Li Zhang ,  Hongbin Liu ,  Jizheng Xu ,  Yue Wang

IPC分类号： H04N19/105 ,  H04N19/139 ,  H04N19/159 ,  H04N19/17 ,  H04N19/176 ,  H04N19/189 ,  H04N19/46 ,  H04N19/52

CPC分类号： H04N19/105 ,  H04N19/139 ,  H04N19/159 ,  H04N19/17 ,  H04N19/176 ,  H04N19/189 ,  H04N19/46 ,  H04N19/52

摘要： Devices, systems and methods for digital video coding, which include sub-block based inter prediction methods, are described. An exemplary method for video processing includes determining, for a conversion between a current block of video and a bitstream representation of the video, a maximum number of candidates in a sub-block based merge candidate list and/or whether to add sub-block based temporal motion vector prediction (SbTMVP) candidates to the sub-block based merge candidate list based on whether temporal motion vector prediction (TMVP) is enabled for use during the conversion or whether a current picture referencing (CPR) coding mode is used for the conversion, and performing, based on the determining, the conversion.

公开(公告)号：US11930175B2

公开(公告)日：2024-03-12

申请号：US17582739

申请日：2022-01-24

申请人： Beijing Bytedance Network Technology Co., Ltd. ,  Bytedance Inc.

发明人： Zhipin Deng ,  Li Zhang ,  Kai Zhang ,  Hongbin Liu

IPC分类号： H04N19/119 ,  G06T9/40 ,  H04N19/107 ,  H04N19/109 ,  H04N19/11 ,  H04N19/127 ,  H04N19/132 ,  H04N19/167 ,  H04N19/169 ,  H04N19/172 ,  H04N19/176 ,  H04N19/186 ,  H04N19/189 ,  H04N19/60 ,  H04N19/61 ,  H04N19/70 ,  H04N19/96

CPC分类号： H04N19/119 ,  G06T9/40 ,  H04N19/107 ,  H04N19/109 ,  H04N19/11 ,  H04N19/127 ,  H04N19/132 ,  H04N19/167 ,  H04N19/172 ,  H04N19/176 ,  H04N19/186 ,  H04N19/1883 ,  H04N19/189 ,  H04N19/60 ,  H04N19/61 ,  H04N19/70 ,  H04N19/96

摘要： Methods, systems, and devices for coding or decoding video wherein the picture partition mode is based on block size are described. An example method for video processing includes using a dimension of a virtual pipeline data unit (VPDU) used for a conversion between a video comprising one or more video regions comprising one or more video blocks and a bitstream representation of the video to perform a determination of whether a ternary-tree (TT) or a binary tree (BT) partitioning of a video block of the one or more video blocks is enabled, and performing, based on the determination, the conversion, wherein the dimension is equal to VSize in luma samples, wherein dimensions of the video block are CtbSizeY in luma samples, wherein VSize=min(M, CtbSizeY), and wherein M is a positive integer.