Coherent optical processor for image-quality metric measurement

Rensheng Dou; Dimitri V. Pruidze; Jennifer C. Ricklin; Victor P. Sivokon; Mikhail A. Vorontsov

doi:10.1117/12.287769

23 September 1997 Coherent optical processor for image-quality metric measurement

Rensheng Dou, Dimitri V. Pruidze, Jennifer C. Ricklin, Victor P. Sivokon, Mikhail A. Vorontsov

Proceedings Volume 3125, Propagation and Imaging through the Atmosphere; (1997) https://doi.org/10.1117/12.287769
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

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.

Citation Download Citation

Rensheng Dou, Dimitri V. Pruidze, Jennifer C. Ricklin, Victor P. Sivokon, and Mikhail A. Vorontsov "Coherent optical processor for image-quality metric measurement", Proc. SPIE 3125, Propagation and Imaging through the Atmosphere, (23 September 1997); https://doi.org/10.1117/12.287769

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