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	Error concealment techniques in MPEG-2 video decoders
	Cao Jihua ; Li Fengting
	2010-05-06 ; 2010-05-06
关键词	Practical Theoretical or Mathematical/ correlation theory data compression decoding error correction codes error statistics image reconstruction video coding/ video signal intraframe correlation interframe correlation error concealment error correction codes signal transmission video decoder design statistical correlation I-frame P-frame B-frame MPEG-2 direct current coefficient error quality reconstructed image signal-to-noise ratio real-time processing/ B6135C Image and video coding B0240Z Other topics in statistics C5260D Video signal processing C5260B Computer vision and image processing techniques C1140Z Other topics in statistics
中文摘要	Video signals have high intraframe and interframe correlations, so error concealment techniques in the decoder can be more effective other than error correction codes in video, signal transmissions. Simulation of a video decoder design with error concealment have shown that the error concealment scheme is quite effective. Statistical correlations of the smoothness and consistency in images were used to develop error concealment techniques for I-frame, P-frame, and B-frame MPEG-2. Error concealment techniques for direct current (DC) coefficient errors gave higher quality reconstructed images. Test results show that the peak signal-to-noise ratio is 2~3 dB higher than that of some traditional methods and can be used with real-time processing.
语种	中文 ; 中文
出版者	Tsinghua Univ. Press ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/11330]
专题	清华大学
推荐引用方式 GB/T 7714	Cao Jihua,Li Fengting. Error concealment techniques in MPEG-2 video decoders[J],2010, 2010.
APA	Cao Jihua,&Li Fengting.(2010).Error concealment techniques in MPEG-2 video decoders..
MLA	Cao Jihua,et al."Error concealment techniques in MPEG-2 video decoders".(2010).

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