公开(公告)号：US20220086457A1

公开(公告)日：2022-03-17

申请号：US17477060

申请日：2021-09-16

Applicant: Lemon Inc.

Inventor： Ye-Kui WANG

IPC: H04N19/157 ,  H04N19/172 ,  H04N19/184 ,  H04N19/132 ,  H04N19/136 ,  H04N19/177

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：US20220086386A1

公开(公告)日：2022-03-17

申请号：US17476885

申请日：2021-09-16

Applicant: Lemon Inc.

Inventor： Ye-Kui WANG

IPC: H04N7/01

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：US20220070480A1

公开(公告)日：2022-03-03

申请号：US17464251

申请日：2021-09-01

Applicant: Lemon Inc.

Inventor： Ye-Kui WANG ,  Li ZHANG

IPC: H04N19/37 ,  G06F16/438 ,  H04N19/172 ,  H04N19/124

Abstract: Systems, methods and apparatus for processing image data are described. One example method includes performing a conversion between a visual media file and a bitstream. The visual media file comprises image items each comprising a sequence of pictures according to a media file format, and the bitstream comprises access units each comprising one or more pictures each belonging to a layer according to a video coding format. The media file format specifies a suggested transition period of an image item to be applied for a transition between the image item and a next image item during displaying of the pictures as a slideshow.