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Optical Engineering

Optoelectronic hidden grids and moire patterns: basics and applications in distance measurement
Author(s): Mario Garavaglia; Anibal P. Laquidara
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Paper Abstract

Moire fringes are visually observed when two 2-D implicit grids are superposed and rotated. We introduce two innovations in the broad field of moiré. The first calls attention to hidden or implicit grids from the photocopying process that are also used to produce moire patterns. This method of moire pattern production is extended to hidden grids optoelectronically generated by digitizing TV-CCD images. Our second innovation is a proposed application of this type of moire pattern to measure distances.

Paper Details

Date Published: 1 November 2001
PDF: 7 pages
Opt. Eng. 40(11) doi: 10.1117/1.1403452
Published in: Optical Engineering Volume 40, Issue 11
Show Author Affiliations
Mario Garavaglia, Univ. Nacional de La Plata (Argentina)
Anibal P. Laquidara, Univ. Nacional de La Plata (Argentina)

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