Restoration of images captured by a staggered time delay and integration camera in the presence of mechanical vibrations

Gadi Hochman, Yitzhak Yitzhaky, Norman S. Kopeika, Yair Lauber, Meira Citroen, Adrian Stern

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

Abstract

Staggered time delay and integration (TDI) scanning image acquisition systems are usually employed in low signal-to-noise situations such as thermal imaging. Analysis and restoration of images acquired by thermal staggered TDI sensors in the presence of mechanical vibrations that may cause space-variant image distortions (severe geometric warps and blur) are studied. The relative motion at each location in the degraded image is identified from the image when a differential technique is used. This information is then used to reconstruct the image by a technique of projection onto convex sets. The main novelty is the implementation of such methods to scanned images (columnwise). Restorations are performed with simulated and real mechanically degraded thermal images.

Original languageEnglish
Pages (from-to)4345-4354
Number of pages10
JournalApplied Optics
Volume43
Issue number22
DOIs
StatePublished - 1 Aug 2004
Externally publishedYes

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