Optimized viewport-adaptive 360-degree video streaming

doi:10.1049/cit2.12011

	Optimized viewport-adaptive 360-degree video streaming
	Chen, Xiaolei 2; Wu, Di 2; Ahmad, Ishfaq 1
刊名	CAAI TRANSACTIONS ON INTELLIGENCE TECHNOLOGY
	2021
卷号	6 期号:3 页码:347-359
关键词	5G mobile communication systems Bandwidth Helmet mounted displays Image coding Dynamic Adaptive Streaming over HTTP Head mounted displays High-efficiency video coding Omni-directional view Spatial relationships Streaming systems Transmission bandwidth Ultrahigh resolution
ISSN号	2468-6557
DOI	10.1049/cit2.12011
英文摘要	Because of the rapid growth of head-mounted displays and 5G networking deployment, 360-degree video has become increasingly popular. To generate the real experience of a virtual environment, 360-degree videos require an ultrahigh resolution and frame rate to cover an omnidirectional view. These two prerequisites impose challenges for the transmission bandwidth and storage capacity of 360-degree video streaming. To reduce bandwidth and storage waste while providing a good immersive experience, we propose an optimized viewport-adaptive 360-degree video streaming method using high-efficiency video coding tiling, motion-constrained tile sets and MPEG dynamic adaptive streaming over HTTP spatial relationship description. The paper describes the rigorous design of the optimized system, which can assign different bitrates to different tiles in the viewport. The experimental results show that the proposed streaming system compares favourably with existing methods in terms of bitrate savings and storage capacity reduction.
WOS研究方向	Computer Science
语种	英语
出版者	WILEY
WOS记录号	WOS:000629999500001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148328]
专题	电气工程与信息工程学院
作者单位	1.Univ Texas Arlington, Dept Comp Sci & Engn, Arlington, TX 76019 USA 2.Lanzhou Univ Technol, Coll Elect & Informat Engn, Lanzhou, Peoples R China;
推荐引用方式 GB/T 7714	Chen, Xiaolei,Wu, Di,Ahmad, Ishfaq. Optimized viewport-adaptive 360-degree video streaming[J]. CAAI TRANSACTIONS ON INTELLIGENCE TECHNOLOGY,2021,6(3):347-359.
APA	Chen, Xiaolei,Wu, Di,&Ahmad, Ishfaq.(2021).Optimized viewport-adaptive 360-degree video streaming.CAAI TRANSACTIONS ON INTELLIGENCE TECHNOLOGY,6(3),347-359.
MLA	Chen, Xiaolei,et al."Optimized viewport-adaptive 360-degree video streaming".CAAI TRANSACTIONS ON INTELLIGENCE TECHNOLOGY 6.3(2021):347-359.