FAMIS (frequency agile modulated imaging system) sensor for imaging in turbid water

Linda J. Mullen; Alan E. Laux; Brandon Cochenour; Eleonora P. Zege

doi:10.1117/12.663779

12 May 2006 FAMIS (frequency agile modulated imaging system) sensor for imaging in turbid water

Linda J. Mullen, Alan E. Laux, Brandon Cochenour, Eleonora P. Zege

Proceedings Volume 6204, Photonics for Port and Harbor Security II; 62040E (2006) https://doi.org/10.1117/12.663779
Event: Defense and Security Symposium, 2006, Orlando (Kissimmee), Florida, United States

Abstract

Optical imaging in turbid ocean water is a challenge due to the high probability that light will scatter multiple times as it propagates to and from the object of interest. Techniques have been developed to suppress the contribution from scattered light and increase the image contrast, such as those using a pulsed source with a gated receiver or a modulated source with a coherent RF receiver. While improving the amplitude contrast of underwater images, these two approaches also have the capability of providing target range information. The effectiveness of each approach for both 2D and 3D imagery depends highly on the turbidity of the intervening water medium. This paper describes a system based on the optical modulation approach, the Frequency Agile Modulated Imaging System (FAMIS), and the techniques that have been developed to improve both amplitude and range imaging in turbid water.

Citation Download Citation

Linda J. Mullen, Alan E. Laux, Brandon Cochenour, and Eleonora P. Zege "FAMIS (frequency agile modulated imaging system) sensor for imaging in turbid water", Proc. SPIE 6204, Photonics for Port and Harbor Security II, 62040E (12 May 2006); https://doi.org/10.1117/12.663779

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