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- W4317796966 abstract "Live 360-degree video streaming is emerging as the next disruptive innovation in the coming era. However, compared to conventional live video streaming, it is much more challenging to provide high-quality live 360-degree video streaming due to high bandwidth demand, stringent latency requirement, and diverse user viewports. In this paper, we propose a viewport-aware live 360-degree video streaming framework called Live360 to optimize end-to-end video stream transmission. To make the problem tractable, we decompose the transmission optimization problem into two sub-problems, and optimize upstream and downstream transmission in an asynchronous way. We prioritize 360-degree cameras according to users’ real-time viewing interests and upload attractive contents with a higher bitrate. We also re-define the metric of QoE (Quality-of-Experience) for live 360-degree video viewers, and solve the optimization problems efficiently using dynamic programming. Extensive experiments show that Live360 is lightweight and significantly outperforms other state-of-the-art methods in terms of various QoE metrics. The average QoE of Live360 is twice that of other baseline methods." @default.
- W4317796966 created "2023-01-24" @default.
- W4317796966 creator A5018535056 @default.
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- W4317796966 date "2023-03-01" @default.
- W4317796966 modified "2023-10-18" @default.
- W4317796966 title "Live360: Viewport-Aware Transmission Optimization in Live 360-Degree Video Streaming" @default.
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- W4317796966 doi "https://doi.org/10.1109/tbc.2023.3234405" @default.
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