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	AN EFFICIENT METHOD FOR NO-REFERENCE H.264/SVC BITSTREAM EXTRACTION
	Meng, Shengbin ; Sun, Jun ; Duan, Yizhou ; Guo, Zongming
	2014
关键词	SVC bitstream extraction distortion model no reference OPTIMIZED BIT EXTRACTION SCALABLE VIDEO EXTENSION SVC
英文摘要	This paper investigates the no-reference SVC bitstream extraction problem and presents an efficient solution to approximate the "optimal" extracted sub-stream. First, we introduce a linear error model to accurately estimate the distortion caused by discarding any combination of packets, even when the original sequence is not available. Then we propose a greedy algorithm to decide each packet's priority according to its R-D impact. The priority value of packets can be stored in the bitstream and used for R-D optimized extraction. Experimental results show that our bitstream extraction method can achieve a significant PSNR gain compared to the extractors of JSVM, without computational complexity increment. Comparison with other methods also demonstrates the advantage of the proposed method.; Acoustics; Engineering, Electrical & Electronic; EI; CPCI-S(ISTP); 0
语种	英语
DOI标识	10.1109/ICASSP.2014.6853945
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/321138]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Meng, Shengbin,Sun, Jun,Duan, Yizhou,et al. AN EFFICIENT METHOD FOR NO-REFERENCE H.264/SVC BITSTREAM EXTRACTION. 2014-01-01.

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