Robust SPIHT Image Coding for Noisy Channels
Wang Gou-yin · Journal of Chongqing University of Posts and Telecommunications · 2002
In this paper, the authors put forward an improved scheme based on robust image coding algorithm. The fundamental approach is to change partly the encoder's output bit sequence into subsequences whereas to remain the classification of SPIHT encoder's output bit according to their importance and error sensitivity. And this method is to protect differently the error-correcting encoding and with the non-uniform distribution of wavelet coefficients, decoder gets its higher quality image through post-processing and appropriately diminishes the wavelet coefficients. Both rate-distortion optimization analyses and experimental results indicate that this method achieves better compression performance with robustness.