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3D digitization
The evolution of digital cameras (speed, spatial resolution) and in computational algorithms (like phase calculation) gave rise to 3D imaging techniques.
Through rogorous calibration procedures, a camera ca become a real tool for dimensional metrology.
Through rogorous calibration procedures, a camera ca become a real tool for dimensional metrology.
Structured light
An active lighting using fringe projection provides a dense 3D point cloud, representing the surface of the part. 
Measurement of reflection surfaces
The process "HOLOMAP" ® , based on reflection of a grid on the surface under study, provides access to the geometric characteristics of the surface : slopes, curves, 3D shape. The process is used for the geometric control of reflective surfaces. 