Fusion of SAR images in different bands can synthesize the information of SAR images in different bands and obtain SAR images with more information. Aiming at the problem that the traditional fusion method cannot deal with the details such as edge and texture in SAR image well,a fusion method based on dual-features in non-subsampling contourlet transform(NSCT) domain is proposed in this paper. For the high-frequency components,a new method based on the region energy and the region gradient is proposed,and the high-frequency coefficients are obtained by the combination of the average and selection rules. Finally,the fusion image is obtained by NSCT inverse transformation. The experimental results show that the fusion image obtained by this method is better than the traditional fusion methods in objective evaluation,which shows that proposed method can synthesize the information of SAR images in different bands and keep details well.
Journal of Signal Processing