Application of the structured illumination method to study the topography of the sole of the foot during a walk

E. Cortizo; A. Moreno Yerras; J. R. Lepore; Mario Garavaglia

doi:10.1117/12.437163

14 August 2001 Application of the structured illumination method to study the topography of the sole of the foot during a walk

E. Cortizo, A. Moreno Yerras, J. R. Lepore, Mario Garavaglia

Author Affiliations +

Proceedings Volume 4419, 4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications; (2001) https://doi.org/10.1117/12.437163
Event: IV Iberoamerican Meeting of Optics and the VII Latin American Meeting of Optics, Lasers and Their Applications, 2001, Tandil, Argentina

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.

Citation Download Citation

E. Cortizo, A. Moreno Yerras, J. R. Lepore, and Mario Garavaglia "Application of the structured illumination method to study the topography of the sole of the foot during a walk", Proc. SPIE 4419, 4th Iberoamerican Meeting on Optics and 7th Latin American Meeting on Optics, Lasers, and Their Applications, (14 August 2001); https://doi.org/10.1117/12.437163

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