Overview of optical 4D signal detection in turbid water by multi-dimensional integral imaging using spatially distributed and temporally encoded multiple light sources

Rakesh Joshi; Timothy O'Connor; Xin Shen; Michael Wardlaw; Bahram Javidi

doi:10.1117/12.2557917

22 April 2020 Overview of optical 4D signal detection in turbid water by multi-dimensional integral imaging using spatially distributed and temporally encoded multiple light sources

Rakesh Joshi, Timothy O'Connor, Xin Shen, Michael Wardlaw, Bahram Javidi

Author Affiliations +

Proceedings Volume 11402, Three-Dimensional Imaging, Visualization, and Display 2020; 114020F (2020) https://doi.org/10.1117/12.2557917
Event: SPIE Defense + Commercial Sensing, 2020, Online Only

Abstract

We overview our recently published multi-dimensional integral imaging-based system for underwater optical signal detection. For robust signal detection, an optical signal propagating through the turbid water is encoded using multiple light sources and coded with spread spectrum techniques. An array of optical sensors captures video sequences of elemental images, which are reconstructed using multi-dimensional integral imaging followed by a 4D correlation to detect the transmitted signal. The area under the curve (AUC) and the number of detection errors were used as metrics to assess the performance of the system. The overviewed system successfully detects an optical signal under higher turbidity conditions than possible using conventional sensing and detection approaches.

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Rakesh Joshi, Timothy O'Connor, Xin Shen, Michael Wardlaw, and Bahram Javidi "Overview of optical 4D signal detection in turbid water by multi-dimensional integral imaging using spatially distributed and temporally encoded multiple light sources", Proc. SPIE 11402, Three-Dimensional Imaging, Visualization, and Display 2020, 114020F (22 April 2020); https://doi.org/10.1117/12.2557917

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