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As technologies evolve, there have been high demands for the three-dimensional (3D) shape measurement techniques to posses the following combined technical features: high accuracy, fast speed, easy implementation, capability of measuring multiple objects as well as measuring complex shapes. Generally, the existing techniques can satisfy some of the requirements, but not all of them. This paper presents...
A non-contact, real-time, high-accuracy, low-cost, broad-range, and full-field 3D shape measurement technique is presented. The technique is based on a generalized fringe projection profilometry approach, and it employs random phase shifting, double- frequency projection fringes, ultrafast direct phase unwrapping, and inverse self-calibration schemes to perform 3D shape determinations with enhanced...
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