The fusion of multispectral (MS) and panchromatic (PAN) images is the nodus of Remotely Sensed Images Fusion. In order to improve the quality of the fused image

in this paper

a novel fusion strategy based on non subsampled contourlet transform (NSCT) is presented. Due to the non subsampled contourlet transform (NSCT) is obtained by coupling a non subsampled pyramid structure with the non subsampled directional filter bank (DFB)

and the non subsampled contourlet transform (NSCT) is shift invariant and high directionality

it can remedy the limitation of the subsampled contourlet (CT) transform and solve the low directional problem of discrete wavelet transform (DWT). In the experiment we used the images of Landsat TM5 and SPOT to validate this strategy

and compared with the DWT and CT use the method of direct replace

chose the maximal absolute value and chose the maximal local Variance. The experimental results show that our method is more effective than other methods in improving the quality of image. This also proves that NSCT is an effective strategy in the field of remotely sensed images fusion

and it can be successfully used in the application of remotely sensed images fusion.