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Encoded moire inspection based on a computer solid model

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2 Author(s)
J. H. Nurre ; Dept. of Electr. & Comput. Eng., Ohio Univ., Athens, OH, USA ; E. L. Hall

An investigation into a system linking a computer solid modeler to an active stereo imaging inspection station is presented. Given the computer solid model of a surface, a projected pattern can be encoded so that the reflections from the object's surface exhibit a uniformly simple pattern when the object's surface and the modeled surface are identical. Research concerning the method of generating projection patterns, as well as the sensitivity of the system, is discussed. A prototype system consisting of a computer graphics workstation; a flexible projector, and a machine vision system was used to inspect two different manufactured parts

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IEEE Transactions on Pattern Analysis and Machine Intelligence  (Volume:14 ,  Issue: 12 )