A complete error resilient video transmission codec is presented, utilizing imperceptible embedded information for combined detecting, resynchronization and reconstruction of the errors and lost data. Utilization of data hiding for this problem provides a reserve information on video at the receiver while unchanging the transmitted bit-stream syntax; hence, improves the reconstruction video quality without significant extra channel utilization. A spatial domain error recovery technique, which hides edge orientation information of a block, and a resynchronization technique, which embeds bit-length of a block into other blocks are combined, as well as some parity information about the hidden data, to conceal channel errors on intra-coded frames of a video sequence. The inter-coded frames are recovered by hiding motion vector information into the next frames. The simulation results show that the proposed approach performs superior to conventional approaches for concealing the errors in binary symmetric channels, especially for higher bitrates and error-rates.
Utilization of data hiding for concealment of video transmission errors provides a reserve information about the video to the receiver while unchanging the transmitted bit-stream syntax; hence, improves the reconstruction video quality without extra channel utilization. A spatial domain error concealment technique, which hides edge orientation information of a block, and a resynchronization technique, which embeds bit length of a block into other blocks are composed. The proposed method also uses these techniques for detecting errors. Simulation results show that these approaches cooperate quite well in concealing the errors.
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