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7 December 2022 Real-time underwater single-photon three-dimensional imaging
Aurora Maccarone, Kristofer Drummond, Aongus McCarthy, Ulrich K. Steinlehner, Yvan R. Petillot, Robert K. Henderson, Yoann Altmann, Gerald S. Buller
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Proceedings Volume 12274, Emerging Imaging and Sensing Technologies for Security and Defence VII; 1227403 (2022) https://doi.org/10.1117/12.2638494
Event: SPIE Security + Defence, 2022, Berlin, Germany
Abstract
Time-correlated single-photon counting (TCSPC) has been established as the preferred choice of detection for high resolution depth profiling due to its excellent surface to surface resolution and high optical sensitivity. This presentation will describe an underwater transceiver system based on a planar CMOS silicon single photon avalanche diode (Si-SPAD) detector array, and interfaced with a graphics processing unit (GPU) for real time processing capabilities with video rates up to 25 Hz. Depth and intensity profiles of stationary and moving targets were acquired with the transceiver fully submerged in scattering water, equivalent up to 7.5 attenuation lengths.
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Aurora Maccarone, Kristofer Drummond, Aongus McCarthy, Ulrich K. Steinlehner, Yvan R. Petillot, Robert K. Henderson, Yoann Altmann, and Gerald S. Buller "Real-time underwater single-photon three-dimensional imaging", Proc. SPIE 12274, Emerging Imaging and Sensing Technologies for Security and Defence VII, 1227403 (7 December 2022); https://doi.org/10.1117/12.2638494
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KEYWORDS
3D image processing
3D metrology
Underwater imaging
Transceivers
Detector arrays
Picosecond phenomena
Target acquisition
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