The MTF measurement of remote sensors and image restoration based on wavelet transform

Based on the theory of MTF detection of remote sensors and image restoration, this paper introduces the wavelet transform and multi-resolution analysis, and then talks about how to de-noise remote sensing images and preserve the edges using wavelet transform. Firstly, wavelet is transformed, after which, the low frequency sub-channel is used to detect MTF, and the high frequency sub-channel is used to de-noise images. The experimental results show that the algorithm is effective to restoration of remote sensing images and is brief especially.