Multiwavelet is an extension form wavelet theory, it can offer a more precise way for image analysis than wavelet multi-resolution analysis. 多小波是小波理论的扩展，多小波变换能够为图像分析提供一种比小波多分辨率更加精细的方法。
It begins with the introduction of the basic concept of wavelet theory, and then the Multiresolution Analysis based on biorthogonal wavelet bases is concluded. 本文从小波变换的基本理论和应用研究出发，首先总结归纳出了基于双正交小波的多分辨分析理论，可以说是对小波理论的丰富和发展。
