Electronic XOR logic moire technique and its application in 3D machine vision

Hong Zhang; Liren Liu

doi:10.1117/12.140763

5 February 1993 Electronic XOR logic moire technique and its application in 3D machine vision

Hong Zhang, Liren Liu

Proceedings Volume 1755, Interferometry: Techniques and Analysis; (1993) https://doi.org/10.1117/12.140763
Event: San Diego '92, 1992, San Diego, CA, United States

Abstract

This paper reports the moire technique by means of electronic XOR logic for obtaining 3-D object contour moire fringes in real time. The main advantage of this method is removal of carrier frequency noise. In this method, the rotation of equiorder surfaces is obtained by changing the period of projection grating. Also, the slope contour fringes are obtained by moving the object in lateral. The projection system is used by means of a self-imaging Talbot effect. The details of equations and the experimental results are presented.

Citation Download Citation

Hong Zhang and Liren Liu "Electronic XOR logic moire technique and its application in 3D machine vision", Proc. SPIE 1755, Interferometry: Techniques and Analysis, (5 February 1993); https://doi.org/10.1117/12.140763

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