Underwater laser-based structured light system for one-shot 3D reconstruction

Authors Miquel Massot Campos | Gabriel Oliver Codina
In IEEE Sensors , Valencia, 2014.

A Laser-based Structured Light System (LbSLS) has been designed to perform underwater close-range 3D reconstructions even with high turbidity conditions and outperform conventional systems. The system uses a camera and a 532 nm green laser projector. The optical technique used is based on the projection of a  pattern  obtained placing a Diffractive Optical Element (DOE) in front of the laser beam. In the experiments described in this manuscript, the DOE used diffracts the laser beam in 25 parallel lines providing enough information in a single camera frame to perform a 3D reconstruction.


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