基于DASH的全景视频传输应用研究

Study on the panoramic video transmission based on DASH

随着虚拟现实的兴起，全景视频业务迎来了快速的发展期。然而，全景视频较于传统视频有着更大的数据量，往往网络环境并不足以支撑全景视频的在线播放，用户在观看全景视频时会出现卡顿、模糊、黑屏等影响用户体验的现象。基于HTTP的DASH技术的发展，为解决全景视频传输所面临的问题带来了很大的助益。文章阐述了全景视频技术以及DASH的发展，提出了一种基于DASH的全景视频自适应传输方法。

With the rise of virtual reality, the panorama video service has experienced a rapid development. However, the panoramic video has a greater amount of data than the traditional video. Usually, the network environment is not enough to support the online play of the panoramic video. The user may experience the user experience when viewing the panoramic video such as stutter, blur and black screen. The development of Dynamic Adaptive Streaming over HTTP based DASH technology is of great help in solving the problems of panoramic video transmission. This paper describes the development of panoramic video technology and DASH, and proposes a DASH- based panoramic video adaptive transmission method.