A Fast Fusion Approach for Remote Sensing Images with Enhanced Edge Feature

Considering that the process of pixel-level remote sensing fusion with large amount of data has poor real-time performance and the fusion result can not describe target feature intuitively, we proposed a fast fusion method for panchromatic and multi-spectral images with enhanced edge feature.In order to improve the running speed, a pixel-level fusion was generated by the algorithm combining lifting wavelet transform with fast IHS transform.Meanwhile, the edges of panchromatic images were extracted by mathematic morphology, which were then fused again with the pixel-level fusion image to generate the final fusion image with enhanced edge information.The experimental result indicates that the proposed algorithm can not only obtain a good fusion result, but also has a well real-time performance.