Error Concealment for 3G-324M Mobile Videophones Over a WCDMA networks

Compressed video bitstreams are intended for real-time transmission over communication networks. Because video coding standards eliminate the temporal, spatial, and statistical redundancies, the coded video bitstreams are very sensitive to transmission errors. Many error resilience coding schemes are available to get high video quality over noisy channels. We propose an error resilient coding technique to limit the effect of error propagation in low bit-rate video coding. The success of error resilient coding techniques relies on how accurately the transmission errors can be detected. Therefore, we propose a very simple error detection technique using data hiding. After error detection, we conceal the corrupted MB data using intra MB refresh and motion compensation with the estimated motion vector. This method will be useful in video communication in error prone environment such as WCDMA networks.