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Hybrid Error Concealment Algorithm for Intra-Frame in H.264  

Yim Chang-Hoon (건국대학교 정보통신대학 인터넷미디어공학부)
Kim Won-Jung (넥스원퓨처 시스템연구소)
Lim Hye-Sook (이화여자대학교 공과대학 정보통신공학과)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.31, no.8C, 2006 , pp. 777-785 More about this Journal
Abstract
H.264 is the prominent video coding standard in various applications such as real-time video streaming and digital multimedia broadcasting, since it provides enhanced compression performance, error resilience tools, and network adaptation. Since compressed video stream is vulnerable to packet loss, error resilience and error concealment(EC) tools are essential for the transmission of video over the Internet. In this paper, we first propose a simple temporal EC method that improves the EC performance for intra-frame in H.264 when the amount of motion is relatively small. Then we propose a new hybrid EC method for intra-frame in H.264, which combines the spatial EC and temporal EC adaptively. The simulations are performed in packet-lossy environments, and the proposed hybrid EC method shows about 0.5-4dB PSNR improvement compared to the conventional spatial EC method that is used for intra-frame in H.264.
Keywords
H.264; video transmission; error resilience; intra-frame; error concealment; packet loss;
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Times Cited By KSCI : 1  (Citation Analysis)
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