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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 43, Iss. 22 — Aug. 1, 2004
  • pp: 4345–4354

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, and Adrian Stern  »View Author Affiliations


Applied Optics, Vol. 43, Issue 22, pp. 4345-4354 (2004)
http://dx.doi.org/10.1364/AO.43.004345


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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.

© 2004 Optical Society of America

OCIS Codes
(100.3020) Image processing : Image reconstruction-restoration
(100.6640) Image processing : Superresolution
(110.6820) Imaging systems : Thermal imaging
(120.7280) Instrumentation, measurement, and metrology : Vibration analysis

History
Original Manuscript: January 8, 2004
Revised Manuscript: April 26, 2004
Published: August 1, 2004

Citation
Gadi Hochman, Yitzhak Yitzhaky, Norman S. Kopeika, Yair Lauber, Meira Citroen, and Adrian Stern, "Restoration of images captured by a staggered time delay and integration camera in the presence of mechanical vibrations," Appl. Opt. 43, 4345-4354 (2004)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-43-22-4345

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