An error resilience scheme for packet loss recover of h.264 video

Authors:
Ziqing Mao;Rong Yan;Ling Shao;Dong Xie
Affiliations:
Computer science Dept, Tsuinghua University, PRC;IBM China Research Lab, Beijing, PRC;IBM China Research Lab, Beijing, PRC;IBM China Research Lab, Beijing, PRC
Venue:
PCM'04 Proceedings of the 5th Pacific Rim Conference on Advances in Multimedia Information Processing - Volume Part II
Year:
2004

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Abstract

In this paper, we propose both an error resilience scheme and the corresponding redundant slice selection and error concealment techniques for the H.264 bit stream transmission over packet-switching networks. To recover the degradation from packet loss, we use redundant picture coding in the encoder side as well as motion compensated error concealment for the decoder. Thereon, a redundant slice selection algorithm is invented to make redundant picture coding efficient. Meanwhile, a well-designed motion vector prediction method is proposed to get precise motion vectors for lost macroblocks. The experimental results for different sequences with diverse packet loss rate show that the proposed error resilience scheme works well for packet loss recovering. The improvement of objective quality is distinguished, e.g. up to 5.8dB for whole sequence and up to 7dB for chosen segment, as well as that of subject experience.