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Selective polarization imager for contrast enhancements in remote scattering media |
Applied Optics, Vol. 51, Issue 18, pp. 4092-4102 (2012)
http://dx.doi.org/10.1364/AO.51.004092
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Abstract
Conventional intensity imaging through turbid media suffers from rapid loss of image contrast due to light scattering from particles or random variations of refractive index. This paper features the development of an active imaging, snapshot, system design and postprocessing algorithms that differentiate between radiation that scatters or reflects from remote, obscured objects and the radiation from the scattering media itself through a combination of polarization difference imaging, channel blurring, and Fourier spatial filtering. The produced sensor acquires and processes image data in real time, yielding improved image contrasts by factors of 10 or greater for dense water vapor obscurants.
© 2012 Optical Society of America
OCIS Codes
(120.5410) Instrumentation, measurement, and metrology : Polarimetry
(290.4210) Scattering : Multiple scattering
(110.0113) Imaging systems : Imaging through turbid media
(280.4788) Remote sensing and sensors : Optical sensing and sensors
(290.5855) Scattering : Scattering, polarization
ToC Category:
Imaging Systems
History
Original Manuscript: July 6, 2011
Revised Manuscript: November 30, 2011
Manuscript Accepted: April 5, 2012
Published: June 14, 2012
Virtual Issues
Vol. 7, Iss. 8 Virtual Journal for Biomedical Optics
Citation
Darren A. Miller and Eustace L. Dereniak, "Selective polarization imager for contrast enhancements in remote scattering media," Appl. Opt. 51, 4092-4102 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-18-4092
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