An Unequal Error Protection in ROI for H.264


Compressed video sequences are very vulnerable to channel disturbances especially when they are transmitted over the packet erasure channels. The transmission errors 1 caused by packet loss not only corrupt the current decoded frame, but also cause the error propagation to the succeeding frames which degrades the quality of services. Therefore, it is considerably important to develop the error resilience techniques to minimize the visual degradation caused by the packet erasure problem. In this paper, we present a ROI (region of interest) protection strategy which aims to reduce the visual distortion caused by packet loss and also obtain a better balance between the transmission overlay and the perceptual benefits. In our method, FEC protection is applied to the ROI in a chessboard-distributed manner and transmitted through the RTP/RTCP Protocols over UDP/IP. Experimental results show that the proposed algorithm has satisfactory subjective and objective video quality in the burst packet-loss environments.

2006 Picture Coding Symposium (PCS)
Li Song
Li Song
Professor, IEEE Senior Member

Professor, Doctoral Supervisor, the Deputy Director of the Institute of Image Communication and Network Engineering of Shanghai Jiao Tong University, the Double-Appointed Professor of the Institute of Artificial Intelligence and the Collaborative Innovation Center of Future Media Network, the Deputy Secretary-General of the China Video User Experience Alliance and head of the standards group.