US 12,284,235 B2
Hybrid download method and apparatus for multiview streaming, and multiview streaming system
Joon-Young Jung, Daejeon (KR); Je-Won Lee, Daejeon (KR); Dong-Joon Choi, Daejeon (KR); and Eun-Hee Hyun, Daejeon (KR)
Assigned to Electronics and Telecommunications Research Institute, Daejeon (KR)
Filed by ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon (KR)
Filed on Nov. 7, 2023, as Appl. No. 18/503,612.
Claims priority of application No. 10-2022-0147618 (KR), filed on Nov. 8, 2022.
Prior Publication US 2024/0155014 A1, May 9, 2024
Int. Cl. H04L 65/61 (2022.01); H04N 21/218 (2011.01)
CPC H04L 65/61 (2022.05) [H04N 21/21805 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A hybrid download method for multiview streaming, comprising:
requesting a group download for an n−1-th segment from a server;
playing an n−3-th segment at a viewpoint VP1 of a viewer;
when a group download request for the n−1-th segment is completed, making a group download request for an n-th segment;
when a change in a viewpoint of the viewer occurs at a time at which an n−2-th segment is played, playing a low-quality n−2-th segment at a viewpoint VP3;
when the group download for the n-th segment is completed, requesting a single download for a high-quality n−1-th segment corresponding to the viewpoint VP3 from the server; and
when the single download for the high-quality n−1-th segment corresponding to the viewpoint VP3 is completed, playing the high-quality n−1-th segment at the viewpoint VP3.