The principle of underwater range gating as well as the concept of the image sensor are presented. Based on measurements on a test image sensor a pixel structure that suits best to the requirements has been selected. Within an extensive characterization underwater the capability of distance measurements in turbid environments is demonstrated.
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Adrian Driewer, Igor Abrosimov, Jonathan Alexander, Marc Benger, Marion O'Farrell, Karl Henrik Haugholt, Chris Softley, Jens T. Thielemann, Jostein Thorstensen, Chris Yates, "UTOFIA: an underwater time-of-flight image acquisition system," Proc. SPIE 10434, Electro-Optical Remote Sensing XI, 1043404 (5 October 2017);