Restart marker regulation technique for progressive JPEG image coding in mobile communications

In this letter, an error-robust and JFEG compliant progressive image compre ssion scheme over wireless channels is presented. The use of restart marker s in the JPEG standard provides the resynchronization function for error ha ndling. Unfortunately, misinterpreted markers may, cause serious error dama ge due to the error propagation. Therefore, a restart marker regulation tec hnique is proposed here to preprocess restart markers at the decoding end. All erroneous restart markers are corrected and rearranged in the correct o rder. After decoding, isolated erroneous restart intervals are detected and further processed by the error concealment to reduce image degradation. Th e simulations demonstrate that the proposed scheme does significantly impro ve the image quality In error-prone environments.