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小波变换是近年来兴起的一种时频域信号分析理论,是信号分析处理的一种强有力的新工具.本文根据小波变换的特点,在Mallat“二带”多分辨分析的基础上,讨论分析了信号的多带多分辨分析的理论和实现算法,并将这一理论和算法应用于图象处理,取得了满意效果.
Wavelet transform is a kind of signal analysis theory in time and frequency domains which is emerging in recent years and is a powerful new tool for signal analysis and processing.Based on the characteristics of wavelet transform and on the basis of Mallat’s “two-band” multi-resolution analysis, The theory and algorithm of multi-band multiresolution analysis of signal are analyzed. The theory and algorithm are applied to image processing, and satisfactory results are obtained.