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Proceedings Paper

Coherent optical processor for image-quality metric measurement
Author(s): Rensheng Dou; Dimitri V. Pruidze; Jennifer C. Ricklin; Victor P. Sivokon; Mikhail A. Vorontsov
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Paper Abstract

Image quality metrics that can be obtained optically using coherent optical systems are discussed. Coherent optical processing to measure these image quality metrics includes several steps: (a) transformation ofthe image plane intensity distribution into a phase modulation ofthe coherent wave using a liquid crystal television; (b) diffraction of the phase modulated wave over a specified distance to enhance particular image spatial frequencies; (c) a secondary intensity-phase transformation; and (d) application of an image quality analyzer based on speckle field statistical properties. We present experimental results, along with corresponding numerical simulations, that demonstrate the effectiveness ofthese technique for adaptive correction of phase-distorted extended source images.

Paper Details

Date Published: 23 September 1997
PDF: 5 pages
Proc. SPIE 3125, Propagation and Imaging through the Atmosphere, (23 September 1997); doi: 10.1117/12.287769
Show Author Affiliations
Rensheng Dou, Army Research Lab. (United States)
Dimitri V. Pruidze, Army Research Lab. (United States)
Jennifer C. Ricklin, Army Research Lab. (United States)
Victor P. Sivokon, New Mexico State Univ. (United States)
Mikhail A. Vorontsov, Army Research Lab. and New Mexico State Univ. (United States)


Published in SPIE Proceedings Vol. 3125:
Propagation and Imaging through the Atmosphere
Luc R. Bissonnette; Christopher Dainty, Editor(s)

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