关键词: 脊波变换, Radon变换, 离散脊波变换, 图像融合

Abstract: 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.

Key words: ridgelet transform, Radon transform, discrete ridgelet transform, image fusion