A Viewport Adaptive Low-latency Streaming System for Large-scale Multi-view Service

A viewport adaptive low-latency streaming system for large-scale multi-view service is proposed. The proposed system is implemented based on MPEG-DASH and supports a total of 25 viewpoints. Because video segments for all 25 views cannot be transmitted at the same time due to network capacity limitations, the video segments for a main view and 8 surrounding views are transmitted. At this time, the video qualities for the main view and the surrounding views are 4K and 2K, respectively. The simulation results show the average latency of the proposed system is less than 1 msec.