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A miniature prism-based stereoscopic system for 3D machine vision applications

We have developed a prototype of a miniature prism-based optical system for simultaneous acquisition of two stereoscopic images on a single image sensor. The scheme and optical characteristics of the system are presented. We show that after a proper geometrical calibration and image processing it is possible to calculate three-dimensional (3-D) shape of the inspected objects. The devices based on this system may be effectively used for 3-D machine vision applications and remote visual inspection.