关键词: 图像融合, Contourlet变换, 循环平移, 小波变换

Abstract: Contourlet Transform（CT） is a new multi-resolution transform，which can give an asymptotic representation of edges and contours in image by virtue of its characteristics of multidirection，flexible multiscale.A image fusion algorithm is proposed based on CT，and cycle spinning is introduced to decrease the shift-variance of the transform.The experimental results show that the fusion scheme is effective and the fused images are better than that of using the laplacian pyramid transform and the Wavelet transform.

Key words: image fusion, Contourlet Transform（CT）, Cycle Spinning, wavelet transform