Low-overhead error-resilient bit-plane image coding
An error resilient technique is proposed for bit-plane based image coding in this research. First, fast resynchronization is achieved with the suffix-rich Huffman code to minimize the length of error propagation. After regaining synchronization, the decoder may not align each symbol correctly due to the wrong number of previously decoded symbols in the error region. Thus, a scheme to identify probable locations of correctly decoded symbols is investigated so that these symbols can be shifted to their proper positions. This scheme exploits the correlation between decoded symbols of the current subband and their parent subband. It is demonstrated by experiments that the proposed error resilient technique results in a more robust codec with little sacrifice in coding efficiency.