基于脊波的多光谱和全色图像融合方法研究

应用了双线性插值的矩形阵列到径向阵列的变换算法，给出了一个离散脊波变换的实现方法，将其应用于多光谱图像与全色图像的融合算法中，通过清晰度、灰度方差、信息熵三个方面，将算法结果与小波变换的结果进行了对比，实验结果表明，相对于小波变换而言，脊波变换能更好地处理线和面的奇异性，而且由融合的结果来看，脊波变换得到的结果在清晰度等方面要高于小波变换。

Research of image fusion of multispectral and panchromatic images based on ridgelet transform

Using the bilinear interpolation, this paper gives an implementation of discrete ridgelet transform. This implementation will be applied to the fusion of multispectral and panchromatic images. It is proved in the result of the experiment that the ridgelet transform, compared with wavelet transform through three aspects, can deal with the singularity of the point and plane better. What’s more, the output image of the algorithm of image fusion based on ridgelet transform is clearer than that of the algorithm based on wavelet transform.