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	WaveCast: Wavelet based wireless video broadcast using lossy transmission
	Fan, Xiaopeng ; Xiong, Ruiqin ; Wu, Feng ; Zhao, Debin
	2012
英文摘要	Wireless video broadcasting is a popular application of mobile network. However, the traditional approaches have limited supports to the accommodation of users with diverse channel conditions. The newly emerged Softcast approach provides smooth multicast performance but is not very efficient in inter frame compression. In this work, we propose a new video multicast approach: WaveCast. Different from softcast, WaveCast utilizes motion compensated temporal filter (MCTF) to exploit inter frame redundancy, and utilizes conventional framework to transmit motion information such that the MVs can be reconstructed losslessly. Meanwhile, WaveCast transmits the transform coefficients in lossy mode and performs gracefully in multicast. In experiments, Wave-Cast outperforms softcast 2dB in video PSNR at low channel SNR, and outperforms H.264 based framework up to 8dB in broadcast. ? 2012 IEEE.; EI; 0
语种	英语
DOI标识	10.1109/VCIP.2012.6410743
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/411914]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Fan, Xiaopeng,Xiong, Ruiqin,Wu, Feng,et al. WaveCast: Wavelet based wireless video broadcast using lossy transmission. 2012-01-01.

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