CONVERGENCE/DIVERGENCE BASED DEPTH DETERMINATION TECHNIQUES AND USES WITH DEFOCUSING IMAGING

摘要

Light is projected toward a surface and depth measurement at points determined by attributes of convergence or divergence of the light captured by a camera system. In defocusing applications, the optical system includes at least two off-axis apertures or camera portions, arranged to obtain an image of the projected light patterns including defocused information. The camera may be movable between different positions to image the surface from said different positions.