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High Resolution Single-shot 3D Imaging with the Single-shot 3D Movie Camera

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This work introduces a novel optical 3D sensor principle and its implementation: the ‘single-shot 3D movie camera’. The camera is designed for the 3D measurement of macroscopic objects with scattering surfaces, e.g. human faces. It combines the acquisition of a dense point cloud displaying physically limited lateral resolution and depth precision together with a single-shot ability. ‘Single-shot’ means that no temporal sequence of exposures is exploited to generate the 3D point cloud. The approach is based on multi-line triangulation. Since, in contrast to other single-shot approaches, no space-bandwidth is wasted by pattern codification, the 3D point cloud can be acquired with its maximal possible density: A 1-Megapixel camera (1000 × 1000 pix) delivers nearly 300,000 independent (uncorrelated) 3D points in each camera frame. A 3D sensor with these features allows for a continuous 3D measurement of moving or deforming objects, resulting in a ‘3D movie’.

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  • 06/04/2018
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