An Effective Error-Resilient Coding for H.264 Video

The transmission errors in H.264 may propagate in the temporal direction. Errors in intra-coded picture (I-frame) will propagate into the associated P-B frame if they are in the same Group Of Picture (GOP). Therefore it is important to detect errors in the I-frame rather than in the P-B frame. This paper proposes and demonstrates an effective technique of Error-Resilient Coding based on bit-error detection and Directional Intra-Frame Concealment (DIFC) for H.264 video. The bit error detection is derived from multiblock checksum, chain coverage and remainder coding. DIFC takes advantage of flexible block sizes to deal with detailed movement areas and employs object edge detection to improve the accuracy of spatial interpolation. The results showed that the proposed directional intra-frame concealment has a better performance than the weighted pixel interpolation in H.264 software. Key-Words: H.264 video, bit-error detection, error concealment, error-resilient coding, video compression