
Proceedings Paper
Correction methods for underwater turbulence degraded imagingFormat | Member Price | Non-Member Price |
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Paper Abstract
The use of remote sensing techniques such as adaptive optics and image restoration post processing
to correct for aberrations in a wavefront of light propagating through turbulent environment has become customary
for many areas including astronomy, medical imaging, and industrial applications. EO imaging underwater has been
mainly concentrated on overcoming scattering effects rather than dealing with underwater turbulence. However, the
effects of turbulence have crucial impact over long image-transmission ranges and under extreme turbulence
conditions become important over path length of a few feet. Our group has developed a program that attempts to
define under which circumstances application of atmospheric remote sensing techniques could be envisioned. In our
experiments we employ the NRL Rayleigh–Bénard convection tank for simulated turbulence environment at Stennis
Space Center, MS. A 5m long water tank is equipped with heating and cooling plates that generate a well measured
thermal gradient that in turn produces various degrees of turbulence. The image or laser beam spot can be
propagated along the tank’s length where it is distorted by induced turbulence. In this work we report on the
experimental and theoretical findings of the ongoing program. The paper will introduce the experimental setup, the
techniques used, and the measurements made as well as describe novel methods for postprocessing and correction of
images degraded by underwater turbulence.
Paper Details
Date Published: 21 October 2014
PDF: 9 pages
Proc. SPIE 9242, Remote Sensing of Clouds and the Atmosphere XIX; and Optics in Atmospheric Propagation and Adaptive Systems XVII, 92421P (21 October 2014); doi: 10.1117/12.2066479
Published in SPIE Proceedings Vol. 9242:
Remote Sensing of Clouds and the Atmosphere XIX; and Optics in Atmospheric Propagation and Adaptive Systems XVII
Adolfo Comerón; Karin Stein; John D. Gonglewski; Evgueni I. Kassianov; Klaus Schäfer; Richard H. Picard, Editor(s)
PDF: 9 pages
Proc. SPIE 9242, Remote Sensing of Clouds and the Atmosphere XIX; and Optics in Atmospheric Propagation and Adaptive Systems XVII, 92421P (21 October 2014); doi: 10.1117/12.2066479
Show Author Affiliations
A. V. Kanaev, U.S. Naval Research Lab. (United States)
W. Hou, U.S. Naval Research Lab. (United States)
S. R. Restaino, U.S. Naval Research Lab. (United States)
W. Hou, U.S. Naval Research Lab. (United States)
S. R. Restaino, U.S. Naval Research Lab. (United States)
S. Matt, U.S. Naval Research Lab. (United States)
S. Gładysz, Fraunhofer Institute of Optronics, System Technologies and Image Exploitation (Germany)
S. Gładysz, Fraunhofer Institute of Optronics, System Technologies and Image Exploitation (Germany)
Published in SPIE Proceedings Vol. 9242:
Remote Sensing of Clouds and the Atmosphere XIX; and Optics in Atmospheric Propagation and Adaptive Systems XVII
Adolfo Comerón; Karin Stein; John D. Gonglewski; Evgueni I. Kassianov; Klaus Schäfer; Richard H. Picard, Editor(s)
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