关键词: 图像融合, 双树复小波变换, 活性测度, 匹配测度

Abstract: An image fusion method based on dual-tree complex wavelet transform is proposed in this paper.After source images decomposed through dual-tree complex wavelet transform，the activity measure and the match measure for each frequency field are defined respectively.The high frequency coefficients and the low frequency coefficients are fused by means of the combination of weighting and selection through fusion genes for each frequency field which are computed by corresponding match measure.Finally，the fused image is obtained through inverse dual-tree complex wavelet transform reconstruction.Experiments results indicate this fusion method possesses favorable objective evaluation performance and subjective vision effect.

Key words: image fusion, dual-tree complex wavelet transform, activity measure, match measure