A Content-Aware Error Resilient Scheme for Wireless Video Streams with Data Embedding

With the rapid development of multimedia and communication technologies, video communication is becoming the main service in wireless communication networks. In order to improve the quality of H.264 video transmissions over error-prone wireless networks, a data embedding based content-aware error recovery approach is proposed in this paper. At the encoder, the important data of each macroblock (MB) of the H.264 intra-coded I frame is extracted adaptively based on scene change information and embedded into the real-time transport protocol (RTP) header of the next frame. At the decoder, if the important data for a corrupted MB can be correctly extracted, the extracted important data will be used for error recovery. Simulation results show that the proposed approach can achieve better error recovery results than existing approaches with similar or less amount of embedded data.