Raptor Codes Based Unequal Protection for Compressed Video According to Packet Priority

Abstract

Raptor codes are state-of-the-art forward error correction (FEC) solutions for multimedia transmission, which have been applied to unequal error protection (UEP) of multi-layered media such as scalable video coding. In this paper, we address the problem of UEP for singlelayered video over packet erasure channels. By exploiting the different priorities of video packets inside a group of pictures (GOP) and making full use of the good characteristics of standardized Raptor codes at large block length, we propose an optimized UEP framework for single-layered video and develop an efficient algorithm to solve it. Simulation results show that significant gains can be obtained by our method in case of packet losses.

Publication
IEEE Transactions on Multimedia
Li Song
Li Song
Professor, IEEE Senior Member
Nam Ling
Nam Ling
Professor,IEEE Fellow