19 January 2009 Phase coding and absolute calibration for a low-cost fringe projection system
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Abstract
A whole field profilometer for the acquisition of free form shapes is presented. The system is based on the projection of a single pattern of Ronchi fringes and on optical triangulation. A novel approach to phase measuring profilometry is implemented to index the field of view. The system is calibrated in an absolute way, in order to obtain dense point clouds in a global reference system. The device is reconfigurable to the measurement problem, portable and rugged and well adapts to multi-view acquisition of free-form shapes.
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Giovanna Sansoni, Marco Trebeschi, "Phase coding and absolute calibration for a low-cost fringe projection system", Proc. SPIE 7239, Three-Dimensional Imaging Metrology, 72390C (19 January 2009); doi: 10.1117/12.806193; https://doi.org/10.1117/12.806193
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