A Model-Based Comparison Of Underwater Imaging Systems

Jules S Jaffe; Chris Dunn

doi:10.1117/12.945742

12 August 1988 A Model-Based Comparison Of Underwater Imaging Systems

Jules S Jaffe, Chris Dunn

Proceedings Volume 0925, Ocean Optics IX; (1988) https://doi.org/10.1117/12.945742
Event: 1988 Technical Symposium on Optics, Electro-Optics, and Sensors, 1988, Orlando, FL, United States

Abstract

In this paper we will explore the predicted performance of a number of different underwater imaging configurations via computer modeling. A convenient metric for ocean imaging is to classify the performance of a system based on the maximum number of attenuation lengths that can be imaged. Previously, we introduced the idea that there are several imaging regimes for underwater imaging [Jaffe;1986]. Using this notation, we note that most standard platforms create images at distances of 1-2 attenuation lengths. Alternate designs for imaging systems are aimed at moving the performance of these systems into a different regime. In this paper we consider two alternate designs whose goal is to increase the range performance of underwater imaging systems. The performance of range-gated systems is characterized and it is demonstrated that although the contrast in these systems is high, they are currently power limited. In order to circumvent the power limitations and still maintain high contrast, a new idea for a system based on scanning a stripe of white light is presented. The system is analyzed in a variety of water types and it is demonstrated that in some situations reasonable images can be obtained at distances of at least 4-attenuation lengths.

Citation Download Citation

Jules S Jaffe and Chris Dunn "A Model-Based Comparison Of Underwater Imaging Systems", Proc. SPIE 0925, Ocean Optics IX, (12 August 1988); https://doi.org/10.1117/12.945742

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