An Novel Loss Protection Scheme for H.264 Video Stream Based on Frame Error Propagation Index

作者：Sun Gang^*; Xing Wei; Lu Dongming

来源：3rd International Conference on Communications and Networking in China, 2008-08-25 to 2008-08-27.

• unequal loss protection
• forward error correction (FEC)
• error propagation
• video streaming

In this paper, a novel GOP level unequal loss protection (G-ULP) scheme is proposed for robust H.264-coded video streaming over packet loss networks. This scheme use Frame Error Propagation Index (FEPI) to characterize video quality degradation caused by Error Propagation in different frames in a GOP when suffer from packet loss. A fast FEPI calculation method in compression domain is also proposed in this paper. By exploiting the unequal significance in different frames in a GOP, different amount of forward error correction (FEC) packets are allocated to different frames in a GOP. The optimal FEC allocation algorithm is based (in the FEN of each frame in the GOP. The simulation results show that the proposed G-ULP scheme can:improve the receiver side reconstructed video quality remarkably under different channel loss patterns.

• 出版日期2008
• 单位浙江大学