Paper Info
Title
Asymmetric Circular Projection For Dynamic Virtual Reality Video Stream Switching
Abstract
To provide full panoramic video content, the transmission bandwidth and playing complexity of virtual reality (VR) video are much higher than that of traditional video. Dynamic stream switching is an efficient scheme which stores multiple asymmetric projections of panoramic video in server side, and transmits only one asymmetric projection (with much lower resolution than full panoramic video) according to the direction of user's head. In this paper, we propose an asymmetric circular (ASC) projection method to generate the asymmetric projection of panoramic video. ASC uses equal area projection in the main viewpoint area to ensure the high and uniform quality of this area, and a projection with decreasing sampling density in other areas. Experimental results show that the bit rate and playing complexity of VR video are greatly reduced with the proposed ASC method. ASC is superior to state-of-the-art method and has been adopted in the standard of IEEE 1857.9-Immersive Visual Content Coding.
Year
DOI
Venue
2017
10.1109/ICIP.2017.8296778
2017 24TH IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING (ICIP)
Keywords
Field
DocType
virtual reality, video streaming, panoramic video, spherical video projection, IEEE 1857.9
Computer vision,Microsoft Windows,Virtual reality,Computer science,Coding (social sciences),Projection method,Lambert azimuthal equal-area projection,Bandwidth (signal processing),Artificial intelligence,Distortion,Encoding (memory)
Conference
Volume
ISSN
ISBN
2017-September
1522-4880
9781509021758
Citations 
PageRank 
References 
0
0.34
0
Authors
4
Name
Order
Citations
PageRank
Yueming Wang139431.63
Ronggang Wang213436.57
Wang Zhenyu3126.10
Wen Gao411374741.77