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http://dx.doi.org/10.5909/JBE.2019.24.7.1209

A Study on Projection Conversion for Efficient 3DoF+ 360-Degree Video Streaming  

Jeong, Jong-Beom (Department of Computer Education, Sungkyunkwan University)
Lee, Soonbin (Department of Computer Engineering, Gachon University)
Jang, Dongmin (Department of Computer Education, Sungkyunkwan University)
Kim, Sungbin (Department of Computer Engineering, Gachon University)
Lee, Sangsoon (Department of Computer Engineering, Gachon University)
Ryu, Eun-Seok (Department of Computer Education, Sungkyunkwan University)
Publication Information
Journal of Broadcast Engineering / v.24, no.7, 2019 , pp. 1209-1220 More about this Journal
Abstract
The demand for virtual reality (VR) is rapidly increasing. Providing the immersive experience requires much operation and many data to transmit. For example, a 360-degree video (360 video) with at least 4K resolution is needed to offer an immersive experience to users. Moreover, the MPEG-I group defined three degrees of freedom plus (3DoF+), and it requires the transmission of multiview 360 videos simultaneoulsy. This could be a burden for the VR streaming system. Accordingly, in this work, a bitrate-saving method using projection conversion is introduced, along with experimental results for streaming 3DoF+ 360 video. The results show that projection conversion of 360 video with 360lib shows a Bjontegaard delta bitrate gain of as much as 11.4%.
Keywords
360-Degree Video; 3DoF+; HEVC; Virtual Reality; 360lib; Projection;
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