Stereoscopic imaging through the sea surface: II. Simulation and analysis

Mark S. Schmalz

doi:10.1117/12.324173

4 September 1998 Stereoscopic imaging through the sea surface: II. Simulation and analysis

Mark S. Schmalz

Proceedings Volume 3392, Detection and Remediation Technologies for Mines and Minelike Targets III; (1998) https://doi.org/10.1117/12.324173
Event: Aerospace/Defense Sensing and Controls, 1998, Orlando, FL, United States

Abstract

Airborne imaging of submerged targets is key to a variety of applications in environmental, law enforcement, and military surveillance and interdiction. As shown in previous research, imaging through the Marine Boundary Layer (also called trans- MBL imaging) incurs distortions due to refraction at the air/water interface and scattering or absorption within the water column. In Part 1 of this series of papers, we presented theory and algorithms for model-based trans-MBL stereoscopic imaging of submerged targets that can provide information concerning target depth and, hence, range-to-target. Additionally, an error analysis was presented which highlights the effect on estimated target depth of key errors in various trans-MBL sensor and imaging model parameters. In this paper, we present simulation results and analysis that illustrate the consequences of off-nadir versus nadir or near-nadir imaging configurations discussed in Part 1. We also discuss and analyze techniques for referring depth estimation error to the focal plane, based on the analysis of Part 1. Finally, we analyze simulation results wherein submergence depth of reconstructed targets is estimated from stereo imagery. Analyses emphasize accuracy of and variability of target depth estimation for various nadir or off-nadir viewing configurations.

Citation Download Citation

Mark S. Schmalz "Stereoscopic imaging through the sea surface: II. Simulation and analysis", Proc. SPIE 3392, Detection and Remediation Technologies for Mines and Minelike Targets III, (4 September 1998); https://doi.org/10.1117/12.324173

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