公开(公告)号：US12143611B2

公开(公告)日：2024-11-12

申请号：US17476178

申请日：2021-09-15

Applicant: Lemon Inc.

Inventor： Ye-Kui Wang

IPC: H04N19/70 ,  H04N7/01 ,  H04N19/44

Abstract: Systems, methods and apparatus for encoding or decoding a file format that stores one or more images are described. One example method includes performing a conversion between a visual media file and a bitstream of a visual media data according to a format rule, wherein the format rule specifies a characteristic of a syntax element in the visual media file, and wherein the format rule specifies that the syntax element that has a value indicative of a level identification is coded in any one or both of a subpicture common group box or a subpicture multiple groups box using eight bits.

公开(公告)号：US12133019B2

公开(公告)日：2024-10-29

申请号：US17477060

申请日：2021-09-16

Applicant: Lemon Inc.

Inventor： Ye-Kui Wang

IPC: H04N7/01 ,  H04N19/105 ,  H04N19/132 ,  H04N19/136 ,  H04N19/157 ,  H04N19/172 ,  H04N19/177 ,  H04N19/184 ,  H04N19/70

CPC classification number: H04N7/01 ,  H04N19/105 ,  H04N19/132 ,  H04N19/136 ,  H04N19/157 ,  H04N19/172 ,  H04N19/177 ,  H04N19/184 ,  H04N19/70

Abstract: Systems, methods and apparatus for processing visual media data are described. One example method includes performing a conversion between visual media data and a visual media file that includes one or more tracks that store one or more bitstreams of the visual media data according to a format rule; wherein the visual media file includes a base track that references one or more subpicture tracks that store coded information for one or more subpictures of the visual media data, and wherein the format rule specifies a process used to reconstruct a video unit from a sample in the base track and the one or more subpicture tracks.

公开(公告)号：US11962936B2

公开(公告)日：2024-04-16

申请号：US17484919

申请日：2021-09-24

Applicant: Lemon Inc.

Inventor： Ye-Kui Wang

IPC: H04N7/01 ,  H04N19/105 ,  H04N19/107 ,  H04N19/172 ,  H04N19/30 ,  H04N19/46 ,  H04N19/70 ,  H04N19/91

CPC classification number: H04N7/01 ,  H04N19/105 ,  H04N19/107 ,  H04N19/172 ,  H04N19/30 ,  H04N19/46 ,  H04N19/70 ,  H04N19/91

Abstract: Systems, methods and apparatus for encoding, decoding or transcoding visual media data are described. One example method of processing visual media data includes performing a conversion between visual media data and a bitstream of the visual media data according to a format rule, wherein the format rule specifies that a supplemental enhancement information (SEI) message that refers to a dependent random access point (DRAP) picture is included in the bitstream, and wherein the format rule further specifies that the SEI message includes a syntax element indicating a number of intra random access point (IRAP) pictures or dependent random access point (DRAP) pictures that are within a same coded layer video sequence (CLVS) as the DRAP picture.

公开(公告)号：US11930295B2

公开(公告)日：2024-03-12

申请号：US17477221

申请日：2021-09-16

Applicant: Lemon Inc.

Inventor： Ye-Kui Wang

IPC: H04N7/01 ,  H04N19/105 ,  H04N19/132 ,  H04N19/169 ,  H04N19/176 ,  H04N19/46

CPC classification number: H04N7/01 ,  H04N19/105 ,  H04N19/132 ,  H04N19/176 ,  H04N19/188 ,  H04N19/46

Abstract: Systems, methods and apparatus for processing visual media data are described. One example method includes performing a conversion between visual media data and a visual media file that includes one or more tracks that store one or more bitstreams of the visual media data according to a format rule; wherein the visual media file includes a base track that references one or more subpicture tracks, and wherein the format rule specifies an order of non-VCL (video coding layer) NAL (network abstraction layer) units in a sample of the base track in reconstructing a video unit from the sample of the base track and samples in the one or more subpicture tracks.

公开(公告)号：US11902552B2

公开(公告)日：2024-02-13

申请号：US17476134

申请日：2021-09-15

Applicant: Lemon Inc.

Inventor： Ye-Kui Wang

IPC: H04N19/44 ,  H04N19/70 ,  H04N7/01

CPC classification number: H04N19/44 ,  H04N7/01 ,  H04N19/70

Abstract: Systems, methods and apparatus for encoding or decoding a file format that stores one or more images are described. One example method includes performing a conversion between a visual media file and a bitstream of a visual media data according to a format rule, wherein the format rule specifies a characteristic of a syntax element in the visual media file, wherein the syntax element has a value that is indicative of a number of bytes used for indicating a constraint information associated with the bitstream.

公开(公告)号：US11871143B2

公开(公告)日：2024-01-09

申请号：US17476885

申请日：2021-09-16

Applicant: Lemon Inc.

Inventor： Ye-Kui Wang

IPC: H04N7/01 ,  H04N19/132 ,  H04N19/136 ,  H04N19/157 ,  H04N19/172 ,  H04N19/105 ,  H04N19/70 ,  H04N19/177 ,  H04N19/184

CPC classification number: H04N7/01 ,  H04N19/105 ,  H04N19/132 ,  H04N19/136 ,  H04N19/157 ,  H04N19/172 ,  H04N19/177 ,  H04N19/184 ,  H04N19/70

Abstract: Systems, methods and apparatus for processing visual media data are described. One example method includes performing a conversion between visual media data and a visual media file that includes one or more tracks that store one or more bitstreams of the visual media data; and wherein the visual media data comprises one or more pictures comprising one or more subpictures or one or more slices; wherein the visual media file stores the one or more tracks according to a format rule; and wherein the format rule specifies that a track that includes a sequence of the one or more slices or the one or more subpictures covers a rectangular area of the one or more pictures.

公开(公告)号：US11831921B2

公开(公告)日：2023-11-28

申请号：US17477320

申请日：2021-09-16

Applicant: Lemon Inc.

Inventor： Ye-Kui Wang

IPC: H04N19/70 ,  H04N19/105 ,  H04N19/132 ,  H04N19/169 ,  H04N19/172 ,  H04N19/184 ,  H04N19/186

CPC classification number: H04N19/70 ,  H04N19/105 ,  H04N19/132 ,  H04N19/172 ,  H04N19/184 ,  H04N19/186 ,  H04N19/188

Abstract: Systems, methods and apparatus for processing visual media data are described. One example method includes performing a conversion between visual media data and a visual media file that includes one or more tracks that store one or more bitstreams of the visual media data according to a format rule; wherein the visual media file includes an operating point record and an operating point group box, and wherein the format rule specifies to include, for each operating point indicated in the visual media file, in the operating point record and the operating point group box, a first element indicative of a chroma format, a second element indictive of a bit depth information, a third element indicative of a maximum picture width, and/or a fourth element indicative of a maximum picture height.

公开(公告)号：US11729427B2

公开(公告)日：2023-08-15

申请号：US17476809

申请日：2021-09-16

Applicant: Lemon Inc.

Inventor： Ye-Kui Wang

IPC: H04N19/70 ,  H04N19/132 ,  H04N19/172 ,  H04N19/184 ,  H04N19/169 ,  H04N19/105 ,  H04N19/186

CPC classification number: H04N19/70 ,  H04N19/105 ,  H04N19/132 ,  H04N19/172 ,  H04N19/184 ,  H04N19/186 ,  H04N19/188

Abstract: Systems, methods and apparatus for processing visual media data are described. One example method includes performing a conversion between visual media data and a visual media file including one or more tracks storing one or more bitstreams of the visual media data according to a format rule; wherein the format rule specifies whether a first element indicative of whether a track contains a bitstream corresponding to a specific output layer set controls whether a second element indicative of a chroma format of the track and/or a third element indictive of a bit depth information of the track is included in a configuration record of the track.

公开(公告)号：US11683529B2

公开(公告)日：2023-06-20

申请号：US17473425

申请日：2021-09-13

Applicant: Lemon Inc.

Inventor： Ye-Kui Wang

IPC: H04N19/70 ,  H04N19/172 ,  H04N19/30 ,  H04N19/169

CPC classification number: H04N19/70 ,  H04N19/172 ,  H04N19/188 ,  H04N19/30

Abstract: Systems, methods and apparatus for visual media data processing are described. One method includes performing a conversion between a visual media data and a visual media file that stores a bitstream of the visual media data in multiple tracks according to a format rule that specifies that the file-level information includes a syntax element that identifies one or more tracks from the multiple tracks that contain a specific type of sample group that includes operation point information.

公开(公告)号：US11770498B2

公开(公告)日：2023-09-26

申请号：US17484283

申请日：2021-09-24

Applicant: Lemon Inc.

Inventor： Ye-Kui Wang

IPC: H04N7/01 ,  H04N19/172 ,  H04N19/70 ,  H04N19/105 ,  H04N19/30 ,  H04N19/107 ,  H04N19/46 ,  H04N19/91

CPC classification number: H04N7/01 ,  H04N19/105 ,  H04N19/107 ,  H04N19/172 ,  H04N19/30 ,  H04N19/46 ,  H04N19/70 ,  H04N19/91

Abstract: Systems, methods and apparatus for encoding, decoding or transcoding visual media data are described. One example method of processing visual media data includes performing a conversion between visual media data and a bitstream of the visual media data including multiple layers according to a format rule; wherein the format rule specifies that a supplemental enhancement information (SEI) message is included in the bitstream to indicate that it is allowed for a decoder to decode 1) a dependent random access point (DRAP) picture in a layer associated with the SEI message and/or 2) pictures included in the layer and following the DRAP picture in a decoding order and an output order, without having to decode other pictures in the layer except for an intra random access point (IRAP) picture associated with the DRAP picture.