US 12,425,558 B2
Low-latency 360 VR streaming system and method for estimating region of interest of user
Jun Hwan Jang, Goyang-si (KR); Woo Chool Park, Incheon (KR); Jin Wook Yang, Uijeongbu-si (KR); Sang Pil Yoon, Seoul (KR); Min Su Choi, Seoul (KR); Jun Suk Lee, Seoul (KR); Su Ho Song, Pyeongtaek-si (KR); and Bon Jae Koo, Suwon-si (KR)
Assigned to Korea Electronics Technology Institute, Seongnam-si (KR)
Filed by Korea Electronics Technology Institute, Seongnam-si (KR)
Filed on Apr. 25, 2024, as Appl. No. 18/645,918.
Application 18/645,918 is a continuation of application No. PCT/KR2021/018752, filed on Dec. 10, 2021.
Claims priority of application No. 10-2021-0144272 (KR), filed on Oct. 27, 2021.
Prior Publication US 2024/0283901 A1, Aug. 22, 2024
Int. Cl. H04N 13/161 (2018.01); G06V 10/25 (2022.01); H04N 13/117 (2018.01)
CPC H04N 13/161 (2018.05) [G06V 10/25 (2022.01); H04N 13/117 (2018.05)] 11 Claims
OG exemplary drawing
 
1. A low-latency 360 virtual reality (VR) streaming method for estimating a region of interest (ROI) of a user, the low-latency 360 VR streaming method comprising:
receiving device pose information from a 360 VR device that comprises a user device;
extracting an ROI of a user, based on the device pose information;
generating ROI tile information corresponding to the ROI;
generating ROI estimation tile information corresponding to a position at which the ROI is to be changed;
requesting, from a streaming server, a tile corresponding to the ROI tile information and the ROI estimation tile information to receive a high-quality tile stream and a low-quality tile stream of full video that comprises a low-quality full video tile stream;
decoding and rendering the high-quality tile stream and the low-quality full video tile stream; and
providing the rendered video to the user device.