A New Optimized Error-Resilient Coding for Video Applications

This paper has proposed and implemented a new optimized and adaptive error-resilient coding based on statistical parity pair embedding (SPPE). The SPPE can locate errors in the compressed I-frame bit stream and this system design can be applied to the MPEG2 wireless video applications. The SPPE is based on the information hiding technique. This SPPE algorithm is proven to have better performance than other traditional algorithms, and is very suitable for use in multipoint communications. In this paper three error concealment (EC) algorithms: previous coded block linear error concealment (PCB-EC), four neighbors linear error concealment (4N-EC) and eight neighbors linear error concealment (8N-EC) were implemented and tested. We found that the proposed SPPE and 4N-EC algorithm together can achieve PSNR increments of 8.2 dB after recovery while other algorithms [1-3] can only improve 1-2 dB after recovery.