Share Email Print
cover

Proceedings Paper

Application of the structured illumination method to study the topography of the sole of the foot during a walk
Author(s): E. Cortizo; A. Moreno Yerras; J. R. Lepore; Mario Garavaglia
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The structured illumination technique consists on projecting a fringe system onto a 3D object form a well defined space point, resulting a pattern depending on characteristics of the projected fringes, the viewpoint and the illuminated object's morphology. The structured illumination method enables to determine the topography of 3D objects. To implement this technique we setup an opto-electronic array that allows to study the sole of the foot during a walk. The method consists on projecting a Ronchi grids and capturing images generated on the foot by a CCD camera. The grid obtained images are graphically processed and the fringes are converted into vectors. A depending algorithm on the experimental setup allows to obtain, from those vectors dat, cotes for a discrete profile plotting of the studied object. The method enables the quantitative determination of the sole's topography during the walk. Qualitatively, it can be used for diagnosis and control of deformation and injuries caused by accidents or illness. It can be introduced in the primary attention health system and study a great number of patients, because of its simple and low cost installation, and for being a non-invasive technique.

Paper Details

Date Published: 14 August 2001
PDF: 4 pages
Proc. SPIE 4419, 4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications, (14 August 2001); doi: 10.1117/12.437163
Show Author Affiliations
E. Cortizo, Ctr. de Investigaciones Opticas and Univ. Nacional de La Plata (Argentina)
A. Moreno Yerras, Univ. Nacional de La Plata and Instituto Superior Politecnico Jose Antonio Echeverria (Argentina)
J. R. Lepore, Ctr. de Investigaciones Opticas and Univ. Catolica de La Plata (Argentina)
Mario Garavaglia, Ctr. de Investigaciones Opticas and Univ. Nacional de La Plata (Argentina)


Published in SPIE Proceedings Vol. 4419:
4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications

© SPIE. Terms of Use
Back to Top