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Proceedings Paper

An embedded processor for real-time atmoshperic compensation
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Paper Abstract

Imaging over long distances is crucial to a number of defense and security applications, such as homeland security and launch tracking. However, the image quality obtained from current long-range optical systems can be severely degraded by the turbulent atmosphere in the path between the region under observation and the imager. While this obscured image information can be recovered using post-processing techniques, the computational complexity of such approaches has prohibited deployment in real-time scenarios. To overcome this limitation, we have coupled a state-of-the-art atmospheric compensation algorithm, the average-bispectrum speckle method, with a powerful FPGA-based embedded processing board. The end result is a light-weight, lower-power image processing system that improves the quality of long-range imagery in real-time, and uses modular video I/O to provide a flexible interface to most common digital and analog video transport methods. By leveraging the custom, reconfigurable nature of the FPGA, a 20x speed increase over a modern desktop PC was achieved in a form-factor that is compact, low-power, and field-deployable.

Paper Details

Date Published: 27 April 2009
PDF: 8 pages
Proc. SPIE 7341, Visual Information Processing XVIII, 734102 (27 April 2009); doi: 10.1117/12.817906
Show Author Affiliations
Michael R. Bodnar, EM Photonics (United States)
Petersen F. Curt, EM Photonics (United States)
Fernando E. Ortiz, EM Photonics (United States)
Carmen J. Carrano, Lawrence Livermore National Lab. (United States)
Eric J. Kelmelis, EM Photonics (United States)

Published in SPIE Proceedings Vol. 7341:
Visual Information Processing XVIII
Zia-Ur Rahman; Stephen E. Reichenbach; Mark Allen Neifeld, Editor(s)

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