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Proceedings Paper

Three-dimensional active vision system with high lateral resolution and large depth of field
Author(s): Li Song; Jean-Paul Boillot; Guylain Lemelin; Roger A. Lessard
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Paper Abstract

A high lateral resolution and large depth of field cannot be simultaneously obtained by using conventional optical focusing elements. The combination of Abbe's and Rayleigh's formulas show that the focal depth is proportional to the square of the focus spot size for these elements. On the other hand, by using a holographic optical focusing lens, one can obtain an axial focus line which confers a high lateral resolution and a large depth of field on a 3-D active vision system.

Paper Details

Date Published: 23 March 1993
PDF: 11 pages
Proc. SPIE 1822, Optics, Illumination, and Image Sensing for Machine Vision VII, (23 March 1993); doi: 10.1117/12.141944
Show Author Affiliations
Li Song, Servo-Robot Inc. (Canada)
Jean-Paul Boillot, Servo-Robot Inc. (Canada)
Guylain Lemelin, Univ. Laval (Canada)
Roger A. Lessard, Univ. Laval (Canada)


Published in SPIE Proceedings Vol. 1822:
Optics, Illumination, and Image Sensing for Machine Vision VII
Donald J. Svetkoff, Editor(s)

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