Three dimensional imaging of dynamic underwater scenes using single photon detection
17:20 - 17:40
Aurora Maccarone, Aongus McCarthy, Julián Tachella, Francesco Mattioli Della Rocca, Yoann Altmann, Stephen McLaughlin, Robert Henderson and Gerald Buller Time-correlated single photon counting (TCSPC) has emerged as a critical optical detection technology for lidar and depth profiling due to its high sensitivity and excellent surface-to-surface resolution. We have applied this technique to measure three-dimensional underwater scenes of stationary and moving targets in highly scattering conditions. We present depth and intensity profiles obtained using two systems: a single pixel monostatic transceiver scanning system; and a camera based on a CMOS single photon SPAD detector array with picosecond timing. We also describe advanced computational imaging approaches that are optimised for underwater scenes to demonstrate real-time processing of three-dimensional moving images.
