Image compression based on biorthogonal wavelet transform
Hong Liu, Linpei Zhai, Ying Gao, Wenming Li, Jiu-fei Zhou · 2006
A method for image compression of biorthogonal wavelet transform based on lifting scheme with SPIHT (set partitioning in hierarchical trees) is proposed in this paper. Wavelet transform affords wide space for image coding algorithms because of its excellent space-frequency localization characterizations. The compact supported, symmetrical and biorthogonal wavelet has linear phase, so it is applied on image compression area widely. The lifting scheme is an efficient method for constructing the wavelet filter after multiresolution. Under the condition of biorthogonal, biorthogonal wavelet base can be constructed freely according to the wavelet performance. And it can quicken the implementation speed of the wavelet transform. Analyzing the algorithm of lifting scheme is applying for constructing biorthogonal wavelet. Experimental results indicate that the method of the biorthogonal wavelet that has good performances with SPIHT is applying for image compression, so as image synthesis performs well.