公开(公告)号：US11677934B2

公开(公告)日：2023-06-13

申请号：US17485298

申请日：2021-09-24

Applicant: Apple Inc.

Inventor： Sudeng Hu ,  David L. Biderman ,  Christopher M. Garrido ,  Hsi-Jung Wu ,  Xiaosong Zhou ,  Dazhong Zhang ,  Jinbo Qiu ,  Karthick Santhanam ,  Hang Yuan ,  Joshua L. Hare ,  Luciano M. Verger ,  Kevin Arthur Robertson ,  Sasanka Vemuri

IPC: H04N7/12 ,  H04N19/105 ,  H04N19/177 ,  H04N19/172 ,  H04N19/146 ,  H04N19/124

CPC classification number: H04N19/105 ,  H04N19/124 ,  H04N19/146 ,  H04N19/172 ,  H04N19/177

Abstract: In an example method, a system receives a plurality of frames of a video, and generates a data structure representing the video and representing a plurality of temporal layers. Generating the data structure includes: (i) determining a plurality of quality levels for presenting the video, where each of the quality levels corresponds to a different respective sampling period for sampling the frames of the video, (ii) assigning, based on the sampling periods, each of the frames to a respective one of the temporal layers of the data structure, and (iii) indicating, in the data structure, one or more relationships between (a) at least one the frames assigned to at least one of the temporal layers of the data structure, and (b) at least another one of the frames assigned to at least another one of the temporal layers of the data structure. Further, the system outputs the data structure.

公开(公告)号：US20230098082A1

公开(公告)日：2023-03-30

申请号：US17485298

申请日：2021-09-24

Applicant: Apple Inc.

Inventor： Sudeng Hu ,  David L. Biderman ,  Christopher M. Garrido ,  Hsi-Jung Wu ,  Xiaosong Zhou ,  Dazhong Zhang ,  Jinbo Qiu ,  Karthick Santhanam ,  Hang Yuan ,  Joshua L. Hare ,  Luciano M. Verger ,  Kevin Arthur Robertson ,  Sasanka Vemuri

IPC: H04N19/105 ,  H04N19/177 ,  H04N19/124 ,  H04N19/146 ,  H04N19/172

Abstract: In an example method, a system receives a plurality of frames of a video, and generates a data structure representing the video and representing a plurality of temporal layers. Generating the data structure includes: (i) determining a plurality of quality levels for presenting the video, where each of the quality levels corresponds to a different respective sampling period for sampling the frames of the video, (ii) assigning, based on the sampling periods, each of the frames to a respective one of the temporal layers of the data structure, and (iii) indicating, in the data structure, one or more relationships between (a) at least one the frames assigned to at least one of the temporal layers of the data structure, and (b) at least another one of the frames assigned to at least another one of the temporal layers of the data structure. Further, the system outputs the data structure.

公开(公告)号：US20240305682A1

公开(公告)日：2024-09-12

申请号：US18600378

申请日：2024-03-08

Applicant: Apple Inc.

Inventor： Jay Mayur Khandhar ,  Borna Ghavam ,  Jinbo Qiu ,  Christopher M. Garrido ,  Karthick Santhanam ,  Patrick Miauton ,  Xiaosong Zhou ,  Dazhong Zhang ,  Kristian D. Pereira ,  Dan Miao

IPC: H04L65/75 ,  G06F3/01 ,  G06T13/40 ,  G06V10/25

CPC classification number: H04L65/762 ,  G06F3/013 ,  G06T13/40 ,  G06V10/25

Abstract: A technique for transmitting data in a copresence environment includes initiating a virtual communication session between a local device and remote devices in a shared copresence environment, where each of the plurality of sending devices are transmitting a sending quality data stream in the virtual communication session. A region of interest for the local device is determined that includes a portion of the copresence environment. The local device subscribes to a first quality data stream for the remote devices represented in the region of interest, and a second quality data stream for the remote devices not represented in the region of interest.