摘要
随着虚拟现实技术不断发展,360度视频编码开始成为研究热点。应用于虚拟现实的360度视频与传统的视频相比分辨率更高,编码数据量更大,在实际应用中面临传输带宽有限的瓶颈,编码效率问题有待解决。归纳分析了国际标准组织联合视频研究组(Joint Video Exploration Team,JVET)正在制定的360度视频编码投影变换技术及其编码优化方法,综合对比了各变换技术的编码性能。根据当前最新研究成果,对下一步研究需要解决的问题进行了探讨总结,给出未来的研究方向和思路。
With the development of virtual reality technology,360-degree video coding has become a hot topic in the current research. Compared with the traditional video,360-degree video for virtual reality requires higher resolution and more data volume,which needs much higher coding efficiency on account of the limited bandwidth. JVET is developing future standards for 360-degree video coding. This paper classified and analyzed the latest projection formats and coding schemes of 360-degree video,and compared the coding performance of each method synthetically. On the basis of the latest research,it put forward the issues that need to be addressed and potential directions in the next research.
作者
艾达
董久军
林楠
刘颖
Ai Da;Dong Jiujun;Lin Nan;Liu Ying(Key Laboratory of Electronic Information Application Tecnology of Site-survey of the Ministry of Public Security,Xi＇ an University of Posts ＆ Telecommunications,Xi＇ an 710121,China;Dept.of Computer Engineering,Santa Clara University,Santa Clara 95053,USA)
出处
《计算机应用研究》
CSCD
北大核心
2018年第6期1606-1612,共7页
Application Research of Computers
基金
国家公安部科技强警项目(2016GABJC51)
国家留学基金资助项目
关键词
虚拟现实技术
360度视频
投影方式
运动估计
视频编码
virtual reality technology
360-degree video
projection format
motion estimation
video coding
