Invention Grant
- Patent Title: Scalability of multi-directional video streaming
-
Application No.: US16132219Application Date: 2018-09-14
-
Publication No.: US10999583B2Publication Date: 2021-05-04
- Inventor: Alexandros Tourapis , Dazhong Zhang , Hang Yuan , Hsi-Jung Wu , Jae Hoon Kim , Jiefu Zhai , Ming Chen , Xiaosong Zhou
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: BakerHostetler
- Main IPC: H04N19/29
- IPC: H04N19/29 ; H04N19/103 ; G09G5/14 ; H04N21/44

Abstract:
Aspects of the present disclosure provide techniques for reducing latency and improving image quality of a viewport extracted from multi-directional video communications. According to such techniques, first streams of coded video data are received from a source. The first streams include coded data for each of a plurality of tiles representing a multi-directional video, where each tile corresponding to a predetermined spatial region of the multi-directional video, and at least one tile of the plurality of tiles in the first streams contains a current viewport location at a receiver. The techniques include decoding the first streams and displaying the tile containing the current viewport location. When the viewport location at the receiver changes to include a new tile of the plurality of tiles, retrieving and decoding first streams for the new tile, displaying the decoded content for the changed viewport location, and transmitting the changed viewport location to the source.
Public/Granted literature
- US20200092571A1 SCALABILITY OF MULTI-DIRECTIONAL VIDEO STREAMING Public/Granted day:2020-03-19
Information query