Error protection method for embedded wavelet codec

This paper presents an error protection method for embedded wavelet codec by combining data hiding with error concealment. For the lowest frequency coefficients, a protection scheme based data hiding is performed. The lowest frequency coefficients, which are taken as the hidden data, are extracted from the compressed bitstream, and embedded back into the same bitstream. The restored hidden data is used to conceal errors. The coefficients that cannot be recovered in other high frequency coefficients reconstruction are predicted through linear interpolation based on inter-subband correlation. Experimental results show that the proposed method achieves good and stable error performance with minimal additional redundancy.