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公开(公告)号：US20240121388A1
公开(公告)日：2024-04-11
申请号：US18521244
申请日：2023-11-28
Inventor： Zhipin Deng , Li Zhang , Ye-Kui Wang , Kai Zhang , Jizheng Xu
IPC: H04N19/117 , H04N19/124 , H04N19/186 , H04N19/196 , H04N19/70
CPC classification number: H04N19/117 , H04N19/124 , H04N19/186 , H04N19/196 , H04N19/70 , H04N19/157
Abstract: Systems, methods and apparatus for video processing are described. The video processing may include video encoding, video decoding, or video transcoding. One example method of video processing includes performing a conversion between a video and a bitstream of the video according to a format rule. The format rule specifies that a first field at a sequence level or a picture level or a slice level controls a value of a second field in an adaptation parameter set.
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公开(公告)号：US11949900B2
公开(公告)日：2024-04-02
申请号：US18190571
申请日：2023-03-27
Inventor： Ye-Kui Wang , Zhipin Deng
IPC: H04N19/31 , C09K13/06 , C23F1/26 , C23F1/28 , H01L21/3213 , H04N19/169 , H04N19/46
CPC classification number: H04N19/46 , C09K13/06 , C23F1/26 , C23F1/28 , H01L21/32134 , H04N19/188
Abstract: Systems, methods and apparatus for encoding, decoding or transcoding digital video are described. One example method of video processing includes performing a conversion between a video and a bitstream of the video, wherein the bitstream conforms to an order of a sub-bitstream extraction process that is defined by a rule that specifies (a) the sub-bitstream extraction process excludes an operation that removes all supplemental enhancement information (SEI) network abstraction layer (NAL) units, which satisfy a condition, from an output bitstream or (b) the order of the sub-bitstream extraction process includes replacing parameter sets with replacement parameter sets prior to removing, from an output bitstream, the SEI NAL units.
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公开(公告)号：US11924475B2
公开(公告)日：2024-03-05
申请号：US18085988
申请日：2022-12-21
Inventor： Zhipin Deng , Ye-Kui Wang , Li Zhang
IPC: H04N19/70 , H04N19/172 , H04N19/176
CPC classification number: H04N19/70 , H04N19/172 , H04N19/176
Abstract: Examples of video encoding methods and apparatus and video decoding methods and apparatus are described. An example method of video processing includes performing a conversion between a current picture of a video and a bitstream of the video according to a rule. The rule specifies that the current picture is a recovery point picture in response to the current picture being a Gradual Decoding Refresh (GDR) picture with a recovery Picture Order Count (POC) value of 0. The recovery POC count specifies a recovery point of decoded pictures in an output order.
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公开(公告)号：US20240048798A1
公开(公告)日：2024-02-08
申请号：US18487342
申请日：2023-10-16
Inventor： Yongyi Yu , Le Yang , Jianping Chen , Ye-Kui Wang
IPC: H04N21/435 , H04N21/2187 , H04N21/845 , H04N21/438 , H04N21/4402 , H04N21/858
CPC classification number: H04N21/435 , H04N21/2187 , H04N21/8456 , H04N21/438 , H04N21/4402 , H04N21/8586
Abstract: A method for processing media data includes identifying in a media presentation description (MPD) an indication of a Tuning-In Media Segment. The Tuning-In Media Segment comprises a latest media data for a client device to start with when tuning into an ongoing live streaming service. The latest media data is selected from either a current media segment that is being generated by the ongoing live streaming service or a previous media segment generated by the ongoing live streaming service based on a length of the current media segment. The MPD is stored by the client device prior to the client device tuning into the ongoing live streaming service. The method further includes performing a conversion between a visual media data and a bitstream according to the MPD.
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公开(公告)号：US20240040140A1
公开(公告)日：2024-02-01
申请号：US18483669
申请日：2023-10-10
Inventor： Ye-Kui Wang , Yang Wang , Li Zhang
IPC: H04N19/46
CPC classification number: H04N19/46
Abstract: A method implemented by a video coding apparatus. The method includes determining that a scalability dimension information (SDI) supplemental enhancement information (SEI) message provides SDI for each layer in a current coded video sequence (CVS); and performing a conversion between a video and a bitstream of the video based on the SDI SEI message. A corresponding video coding apparatus and non-transitory computer readable medium are also disclosed.
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Patent Agency Ranking
公开(公告)号：US20240031608A1
公开(公告)日：2024-01-25
申请号：US18476759
申请日：2023-09-28
Inventor： Yang Wang , Ye-Kui Wang , Li Zhang
Abstract: A method of processing video data includes using a scalability dimension information (SDI) supplemental enhancement information (SEI) message to indicate which primary layers are associated with an auxiliary layer when auxiliary information is present in a bitstream, and converting between a video media file and the bitstream based on the SDI SEI message. A corresponding video coding apparatus and non-transitory computer readable medium are also disclosed.
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公开(公告)号：US20230345053A1
公开(公告)日：2023-10-26
申请号：US18343370
申请日：2023-06-28
Inventor： Ye-Kui Wang , Yang Wang , Li Zhang
Abstract: A mechanism for processing video data is disclosed. A dependent random access point (DRAP) sample entry is signaled in a DRAP sample group. The DRAP sample entry describes one or more DRAP samples. A conversion is performed between a visual media data and a visual media data file based on the DRAP sample entry.
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公开(公告)号：US20230239502A1
公开(公告)日：2023-07-27
申请号：US18192091
申请日：2023-03-29
Inventor： Ye-Kui Wang , Li Zhang , Kai Zhang , Zhipin Deng
IPC: H04N19/597 , H04N19/46 , H04N19/70
CPC classification number: H04N19/597 , H04N19/46 , H04N19/70
Abstract: Systems, methods and apparatus for encoding, decoding or transcoding digital video are described. One example method of processing video data includes performing a conversion between a video and a bitstream of the video according to a format rule, wherein the format rule specifies that a supplemental enhancement information field or a video usability information syntax structure included in the bitstream indicates whether the bitstream comprises a multiview bitstream in which multiple views are coded in multiple video layers.
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公开(公告)号：US20230059183A1
公开(公告)日：2023-02-23
申请号：US17962141
申请日：2022-10-07
Inventor： Zhipin Deng , Li Zhang , Ye-Kui Wang , Kai Zhang , Jizheng Xu
IPC: H04N19/70 , H04N19/46 , H04N19/159 , H04N19/174 , H04N19/172
Abstract: Systems, methods and apparatus for video processing are described. The video processing may include video encoding, video decoding, or video transcoding. One example method of video processing includes performing a conversion between a video including one or more video regions and a bitstream of the video according to a format rule. The format rule specifies that a variable X indicates whether B slice is allowed or used in a video region. The format rule further specifies that the variable X is based on values of a reference picture list information present flag and/or a field indicating a number of entries in a reference picture list syntax structure.
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公开(公告)号：US20230043717A1
公开(公告)日：2023-02-09
申请号：US17942880
申请日：2022-09-12
Inventor： Zhipin Deng , Ye-Kui Wang , Li Zhang , Kai Zhang
IPC: H04N19/70 , H04N19/136 , H04N19/186 , H04N19/169 , H04N19/30
Abstract: A video processing method includes performing a conversion between a video comprising a video unit and a bitstream of the video according to a rule. The rule specifies whether or how to include, in an adaptation parameter set (APS), information related to a scaling list of the video is based on a first syntax element. The first syntax element indicates whether the APS includes chroma component related syntax elements and is independent of one or more syntax elements in a sequence parameter set (SPS).
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