关键词: 图像融合, 信息瓶颈算法, 非下采样Contourlet变换

Abstract: A multi-focus image fusion method based on information bottleneck clustering is proposed.The method attains the joint clustering denotation through the clustering analysis of source images using information bottleneck algorithm.After the source images are decomposed using non-sampled contourlet transform，the high/low frequency coefficients are fused by the guide of the joint clustering denotation.The fused image is reconstructed in using non-sampled contourlet transform.The experimental results show the proposed method possesses favorable objective evaluation performance and subjective vision effect.

Key words: image fusion, information bottleneck method, non-sampled contourlet transform