本文推导了二维矩形域上的正交多分辨分析与多尺度空间，构造了

相应的尺度函数和小波函数，以及它们的对偶函数，阐述了利用矩形域

上的双正交小波压缩分割图像的原理，并给出了计算步骤.

-This two-dimensional rectangular domain is derived orthogonal multiresolution analysis and multi-scale space, constructed the corresponding scaling function and wavelet function, and their dual function, describes the use of rectangular domain partition of biorthogonal wavelet image compression principles, and gives the calculation procedure.