Wireless multimedia error resilience via a data hiding technique

Transmission of digital contents in unavoidable noise-prone environments demands sophisticated error detection and concealment techniques to restore the perceptual qualities. Thus, robust transmission with error resilience has become an indispensable component in many multimedia coding standards including MPEG2/4 and JPEG2000. A variety of error detection/concealment techniques have been reported in the literature. However there has been little work done by employing the advantages of data hiding, which is emerging as a powerful tool for efficient protection and authentication of digital contents. In this paper, we propose a new data hiding technique to offer error resilience of transmitted images in wireless environments. First, the authentication information, which is generated from structural digital signature, will be used for error detection. Second, the recovery information, which is an approximate version of its original data, will be used for error concealment. Quantitative simulation results are provided to demonstrate the performance of the proposed method.