摘要
文章通过对实序列快速傅里叶变换的算法推导及Mallat算法原理的分析,根据离散小波变换(DWT)算法结构特征,提出了一种离散小波的快速变换算法,给出了相应的算法步骤。从数学理论上进行了论证,并把该算法应用到静态图像处理中,得到了很好的快速和重建效果,具有一定的实用价值。
After analyzing the principle of Mallat algorithm and derivation of the real signal FFT algorithm , base on features of Discrete Wavelet Transform (DWT), a fast decomposition and reconstruction algorithm of DWT is proposed; theoretical analysis associated with the algorithm is also given. Practical application of this algorithm to static image processing shows that the algorithm proposed is valuable to be used with faster speed and better reconstruction result.
出处
《电路与系统学报》
CSCD
2002年第2期13-17,共5页
Journal of Circuits and Systems
关键词
小波分析
MALLAT算法
快速小波算法
图像处理
wavelet analysis
Mallat algorithm
fast wavelet algorithm
image signal processing
