Coefficient rearrangement of multiwavelet SPIHT and its application in image coding
Yi Gao · Computer Engineering and Applications Journal · 2009
An image coding scheme based on the feature of SPIHT is proposed.After pre-filtering and two dimensional multi-wavelet decomposition are performed to original image,three hierarchical trees are constructed based on a new scan order to obtain sub-bands which like those in scalar wavelet decomposition.Then a new quantization based on the statistical analysis of wavelet coefficients is applied for SPIHT.Experimental results demonstrate that this scheme is effective and promising.