A universal rate control scheme for video transcoding

	A universal rate control scheme for video transcoding
	Xu, Long; Kwong, Sam; Wang, Hanli; Zhang, Yun; Zhao, Debin; Gao, Wen
刊名	IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY
	2012
英文摘要	Video transcoding is proposed for the bitrate adaption, spatial and/or temporal resolutions adaption, and video format conversion. In video streaming application, it converts videos at server to the compatible versions demanded by networks or clients' devices, so that the videos can be delivered over networks and displayed in the clients' devices successfully. This paper provides a universal rate control scheme for various video transcoding purposes. First, a new rate-distortion (R-D) model is established theoretically for better representing the real R-D feature of transcoding. Second, a window-level rate control algorithm is proposed for providing smooth visual quality with compliant buffer constraint by utilizing the two-pass R-D model and a new proposed sliding window buffercontrol strategy. Finally, a universal rate control scheme for transcoding is developed based on the established R-D model and the proposed window-level ratecontrol algorithm. The extensive experimental results demonstrate that as compared to other state-of-the-art rate control algorithms for transcoding, the proposed scheme can achieve more bit control accuracy with the average mismatch below 0.2%, and much more consistent visual quality with 0.1 dB-0.3 dB peak-to-signal noise ratio improvement in average, while with low computational complexity.
收录类别	SCI
原文出处	http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6019031
语种	英语
内容类型	期刊论文
源URL	[http://ir.siat.ac.cn:8080/handle/172644/4210]
专题	深圳先进技术研究院_数字所
作者单位	IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY
推荐引用方式 GB/T 7714	Xu, Long,Kwong, Sam,Wang, Hanli,et al. A universal rate control scheme for video transcoding[J]. IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY,2012.
APA	Xu, Long,Kwong, Sam,Wang, Hanli,Zhang, Yun,Zhao, Debin,&Gao, Wen.(2012).A universal rate control scheme for video transcoding.IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY.
MLA	Xu, Long,et al."A universal rate control scheme for video transcoding".IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY (2012).