-
1.发明申请Method and Apparatus for Compressing Coding Unit in High Efficiency Video Coding 有权用于在高效率视频编码中压缩编码单元的方法和装置公开(公告)号：US20150049817A1
公开(公告)日：2015-02-19
申请号：US14527769
申请日：2014-10-30
发明人： Shan Liu , Yu-Wen Huang , Shaw-Min Lei
CPC分类号： H04N19/51 , H04N19/119 , H04N19/13 , H04N19/147 , H04N19/157 , H04N19/159 , H04N19/176 , H04N19/44 , H04N19/46 , H04N19/463 , H04N19/647 , H04N19/91 , H04N19/96
摘要： In HEVC (High Efficiency Video Coding), a 2N×2N coding unit can be partitioned into various partition types hierarchically. The coding system uses a criterion to determine the best partition, where RD-rate is often used as the criterion. N×N partition at level k becomes redundant if 2N×2N at level k+1 will be evaluated. In order to eliminate the above redundancy, the allowable partition sizes are constrained according to a method previously disclosed. In the current invention, the complexity is further reduced. According to one embodiment, N×N partition is not allowed for any INTER mode regardless of the coding unit size. Furthermore, flexibility is provided so that either the method and apparatus with further complexity reduction can be selected or an alternative method and apparatus can be selected. Syntaxes to support embodiments according to the present invention are also disclosed.
摘要翻译： 在HEVC（高效率视频编码）中，2N×2N个编码单元可以分层划分成各种分区类型。 编码系统使用标准来确定最佳分区，其中通常使用RD率作为标准。 如果在级别k + 1处的2N×2N将被评估，则级别k的N×N分区变得冗余。 为了消除上述冗余，根据先前公开的方法来限制允许的分区大小。 在本发明中，复杂性进一步降低。 根据一个实施例，无论编码单元大小如何，对于任何INTER模式，不允许N×N分区。 此外，提供灵活性，使得可以选择具有进一步复杂度降低的方法和装置，或者可以选择替代方法和装置。 还公开了用于支持根据本发明的实施例的语法。
-
公开(公告)号：US20230047271A1
公开(公告)日：2023-02-16
申请号：US17865530
申请日：2022-07-15
发明人： Olena Chubach , Yu-Wen Huang , Ching-Yeh Chen
IPC分类号： H04N19/186 , H04N19/182 , H04N19/132
摘要： A down-sample video coding system is provided. A decoding system receives to be decoded data from a bitstream for one or more pictures of a video. Each picture includes pixels having different color components. The decoding system receives up-down-sampling parameters that are applicable to a current video unit in the received data. The up-down-sampling parameters include different subsets for different color components. The decoding system decodes the data to reconstruct the current video unit. The decoding system up-samples the reconstructed current video unit according to the up-down-sampling parameters. The different color components of the current video unit are up-sampled according to different subsets of the up-down-sampling parameters.
-
公开(公告)号：US11445173B2
公开(公告)日：2022-09-13
申请号：US16763045
申请日：2018-10-26
发明人： Chia-Ming Tsai , Han Huang , Chih-Wei Hsu , Yu-Wen Huang
IPC分类号： H04N19/105 , H04N19/132 , H04N19/159 , H04N19/176 , H04N19/70
摘要： A method and apparatus for video coding using Intra prediction are disclosed. In one method, a first prediction sample in an immediately right column of the current block and a second prediction sample in an immediately below row of the current block are derived using angular prediction. The first prediction sample and a left column reference sample in the same row as the first prediction sample are interpolated to generate a horizontal predictor. The second prediction sample and an above-row reference sample in the same column as the second prediction sample are interpolated to generate a vertical predictor. The vertical predictor and the horizontal predictor are linearly combined to generate an angular-planar prediction sample. In another method, a first predictor is generated using angular prediction and a second predictor is generated using planar prediction. The first predictor and the second predictor are linearly combined to generate a fused Intra predictor.
-
公开(公告)号：US10972755B2
公开(公告)日：2021-04-06
申请号：US16699272
申请日：2019-11-29
发明人： Lulin Chen , Chih-Wei Hsu , Yu-Wen Huang
IPC分类号： H04N19/70 , H04N19/503 , H04L29/06 , H04N19/48 , H04N19/196
摘要： A method and apparatus of video coding are disclosed. In the encoding side, video data are received, where a GDR (Gradual Decoding Refresh) picture type is supported by the encoding device. A syntax structure including a first syntax in NAL (Network Access Layer) unit header is generated, where an NAL unit type indicated by the first syntax comprises the GDR picture type. Encoded video data including the syntax structure from the video data are generated. A corresponding method and apparatus for the decoding side are also disclosed.
-
公开(公告)号：US20210044838A1
公开(公告)日：2021-02-11
申请号：US16984818
申请日：2020-08-04
发明人： Lulin Chen , Chih-Wei Hsu , Yu-Wen Huang
IPC分类号： H04N19/96 , H04N19/70 , H04N19/119 , H04N19/184
摘要： A method of decoding a video sequence coded with subpictures can include receiving a first syntax element corresponding to a coding tree unit (CTU) size in a bitstream at a decoder, receiving a second syntax element corresponding to whether a picture being partitioned into subpictures, in response to the second syntax element indicating the picture is partitioned into the subpictures, receiving third syntax elements indicating a position and a size of each of the subpictures in the picture based on a unit of the CTU size, and reconstructing one or more of the subpictures based on the position and the size of each of the respective subpictures in the picture.
-
公开(公告)号：US09510012B2
公开(公告)日：2016-11-29
申请号：US14527769
申请日：2014-10-30
发明人： Shan Liu , Yu-Wen Huang , Shaw-Min Lei
IPC分类号： H04N19/44 , H04N19/51 , H04N19/463 , H04N19/176 , H04N19/119 , H04N19/147 , H04N19/96 , H04N19/91 , H04N19/159
CPC分类号： H04N19/51 , H04N19/119 , H04N19/13 , H04N19/147 , H04N19/157 , H04N19/159 , H04N19/176 , H04N19/44 , H04N19/46 , H04N19/463 , H04N19/647 , H04N19/91 , H04N19/96
摘要： In HEVC (High Efficiency Video Coding), a 2N×2N coding unit can be partitioned into various partition types hierarchically. The coding system uses a criterion to determine the best partition, where RD-rate is often used as the criterion. N×N partition at level k becomes redundant if 2N×2N at level k+1 will be evaluated. In order to eliminate the above redundancy, the allowable partition sizes are constrained according to a method previously disclosed. In the current invention, the complexity is further reduced. According to one embodiment, N×N partition is not allowed for any INTER mode regardless of the coding unit size. Furthermore, flexibility is provided so that either the method and apparatus with further complexity reduction can be selected or an alternative method and apparatus can be selected. Syntaxes to support embodiments according to the present invention are also disclosed.
-
公开(公告)号：US12041248B2
公开(公告)日：2024-07-16
申请号：US17865530
申请日：2022-07-15
发明人： Olena Chubach , Yu-Wen Huang , Ching-Yeh Chen
IPC分类号： H04N19/186 , H04N19/132 , H04N19/182
CPC分类号： H04N19/186 , H04N19/132 , H04N19/182
摘要： A down-sample video coding system is provided. A decoding system receives to be decoded data from a bitstream for one or more pictures of a video. Each picture includes pixels having different color components. The decoding system receives up-down-sampling parameters that are applicable to a current video unit in the received data. The up-down-sampling parameters include different subsets for different color components. The decoding system decodes the data to reconstruct the current video unit. The decoding system up-samples the reconstructed current video unit according to the up-down-sampling parameters. The different color components of the current video unit are up-sampled according to different subsets of the up-down-sampling parameters.
-
公开(公告)号：US11363307B2
公开(公告)日：2022-06-14
申请号：US16984818
申请日：2020-08-04
发明人： Lulin Chen , Chih-Wei Hsu , Yu-Wen Huang
IPC分类号： H04N19/96 , H04N19/184 , H04N19/119 , H04N19/70
摘要： A method of decoding a video sequence coded with subpictures can include receiving a first syntax element corresponding to a coding tree unit (CTU) size in a bitstream at a decoder, receiving a second syntax element corresponding to whether a picture being partitioned into subpictures, in response to the second syntax element indicating the picture is partitioned into the subpictures, receiving third syntax elements indicating a position and a size of each of the subpictures in the picture based on a unit of the CTU size, and reconstructing one or more of the subpictures based on the position and the size of each of the respective subpictures in the picture.
-
-
-
-
-
-
-
搜索结果
8 条记录 (耗时 0.02 秒)
