Title :
The MTF measurement of remote sensors and image restoration based on wavelet transform
Author :
Wang, Zhen-guo ; Geng, Ze-xun ; Zhang, Ya-xin ; Sui, Xue-lian
Author_Institution :
Inf. Eng. Univ., Zhengzhou
Abstract :
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.
Keywords :
edge detection; geophysical signal processing; image denoising; image resolution; image restoration; image sensors; remote sensing; wavelet transforms; MTF detection; edge preservation; image restoration; modulation transfer function measurement; multi resolution analysis; remote image sensors; remote sensing image denoising; wavelet transform; Degradation; Equations; Frequency; Image analysis; Image restoration; Noise reduction; Remote sensing; Transfer functions; Wavelet analysis; Wavelet transforms; Image restoration; MTF; Remote sensing; Wavelet transform; de-noising; multi-resolution analysis;
Conference_Titel :
Wavelet Analysis and Pattern Recognition, 2007. ICWAPR '07. International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-1065-1
Electronic_ISBN :
978-1-4244-1066-8
DOI :
10.1109/ICWAPR.2007.4421770
