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Optical Engineering

Image restoration of hybrid time delay and integration camera system with residual motion
Author(s): Zhenzhen Zheng; Jiagu Wu; Huajun Feng; Zhihai Xu; Qi Li; Yueting Chen
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Paper Abstract

In this paper, we present a hybrid system for time delay and integration (TDI) image restoration. Images are degraded by residual motion, which distorts and blurs the TDI images during exposures and excludes the along-track scanning motion. The motion trajectory is estimated from the image sequence captured by an auxiliary high-speed camera. In order to make the estimated results less sensitive to the imaging conditions and noise, a new method based on cross-correlation is introduced for motion estimation. Then geometric distortion of the TDI image is removed by choosing the correct blurred block according to the central of the corresponding motion trajectory and the final image is restored row by row with the Richardson-Lucy algorithm. Simulated and experimental results are given to prove the effectiveness of our system.

Paper Details

Date Published: 1 June 2011
PDF: 11 pages
Opt. Eng. 50(6) 067012 doi: 10.1117/1.3593156
Published in: Optical Engineering Volume 50, Issue 6
Show Author Affiliations
Zhenzhen Zheng, Zhejiang Univ. (China)
Jiagu Wu, Zhejiang Univ. (China)
Huajun Feng, Zhejiang Univ. (China)
Zhihai Xu, Zhejiang Univ. (China)
Qi Li, Zhejiang Univ. (China)
Yueting Chen, Zhejiang Univ. (China)

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