This paper firstly made a brief introduction of the technology for information fusion

and also summarized the previous and resent worldwide studies on the fusion of multisensor satellite remote sensing data. Then

aimed at geological application

the paper exhibited the utility of wavelet transform for data fusion purpose illustrated by an example of Landsat-TM and SPOT-PAN images. On the one hand

the authors performed a discussion on the relationship between wavelet coefficients and the fused results

and set up a fusion model called“CMWD”; On the other hand

the paper raised a comparison of the fused images which were merged by wavelet transform

PCA and IHS methods

in spatial quality improving and spectral information preserving respectively. Finally

based on Multi-Agent theory

the paper presented a framework for building up an information fusion system of satellite data.