An Optimal Algorithm of Multi-sensor Image Fusion Based on Wavelet Transform

This paper proposes a wavelet based optimal algorithm for image fusion. The algorithm aims at solving problem of preserving spatial and spectrum information at the same time. First it enhances respectively low frequency of multi spectral image and high frequency of high resolution image through wavelet transform. Then, it fuses them. So this approach optimizes traditional wavelet transform fusion method. Through the experiment merging images data of different SAR and TM image to the same object from different resolution images data, the result shows this approach reduces blocking effects while holding actively spectrum information. It provides a more satisfactory fusion outcome.