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Proceedings Paper

Aerial image blurring caused by image motion and its restoration using wavelet transform
Author(s): Ming Liu; Gang Liu; Jihong Xiu; Haipeng Kuang; Linpei Zhai
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Paper Abstract

A wavelet-based approach of aerial blurred image restoration is proposed in this article. Image motion is inevitable in photographing for aerospace camera. Though some Image Motion Compensation(IMC) schemes are applied in aerial imaging system, the ultimate image will be blurred in certain extent for the existence of IMC residual error, while the forward image motion is the key element among all image motions which lead to image blurring. First the course of blurring caused by forward image motion is expressed using wavelet transform, and a multiresolution sparse matrix representation of the degeneration model is obtained according to the wavelet transform. Subsequently a regularizing restoration algorithm is deduced from it, and which can smoothly restraint the processed result efficiently. In the end the proposed approach is tested in MATLAB. The blurred image is restored using above-mentioned wavelet algorithm, conventional contrary filter and Wiener filter algorithm separately. The conclusion that the wavelet-based restoration algorithm is superior to other two approaches is obtained by comparing the restored image’s value of mean gradient. The calculating quantity of the wavelet-based blurred image restoration approach isn't large and it has good practicability in the field of image interpretation and aerial survey or drawing.

Paper Details

Date Published: 8 February 2005
PDF: 9 pages
Proc. SPIE 5637, Electronic Imaging and Multimedia Technology IV, (8 February 2005); doi: 10.1117/12.574329
Show Author Affiliations
Ming Liu, Changchun Institute of Optics, Fine Mechanics and Physics, CAS (China)
Graduate School of the Chinese Academy of Sciences (China)
Gang Liu, Air Force Changchun Aviation Institute (China)
Jihong Xiu, Changchun Institute of Optics, Fine Mechanics and Physics, CAS (China)
Haipeng Kuang, Changchun Institute of Optics, Fine Mechanics and Physics, CAS (China)
Linpei Zhai, Changchun Institute of Optics, Fine Mechanics and Physics, CAS (China)

Published in SPIE Proceedings Vol. 5637:
Electronic Imaging and Multimedia Technology IV
Chung-Sheng Li; Minerva M. Yeung, Editor(s)

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