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Proceedings Paper

Three dimensional reconstruction of objects with large depth variations
Author(s): Jacques Lewandowski; Bruno Menard; Y. Kermabon; Daniel G. Hennequin
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Paper Abstract

We present an active triangulation based system for 3D reconstruction of objects with large depth variations which are placed on a rotary table to obtain the entire 3D view. We project Fresnel diffraction from an edge to generate an illumination pattern with large depth of focus on the object surface. The frontier line separating dark from bright areas of the diffraction pattern is used for line sectioning of the object, and the height profile is obtained through triangulation. Three dimensional reconstructions are illustrated for various objects having 10 cm maximum depth variations: the depth measurement accuracy is 0.36 mm for an object average distance of 350 mm.

Paper Details

Date Published: 15 November 1994
PDF: 9 pages
Proc. SPIE 2248, Optical Measurements and Sensors for the Process Industries, (15 November 1994); doi: 10.1117/12.194345
Show Author Affiliations
Jacques Lewandowski, College Militaire Royal de Saint-Jean (Canada)
Bruno Menard, College Militaire Royal de Saint-Jean (Canada)
Y. Kermabon, College Militaire Royal de Saint-Jean (Canada)
Daniel G. Hennequin, College Militaire Royal de Saint-Jean (Canada)


Published in SPIE Proceedings Vol. 2248:
Optical Measurements and Sensors for the Process Industries
Christophe Gorecki; Richard W. T. Preater, Editor(s)

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