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Proceedings Paper

Quantification of oxidation on the surface of a polymer through photography
Author(s): J. Yáñez M.; A. Estrada M.
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Paper Abstract

Oxidation in polymeric materials and special polyurethane is manifested by a yellow color, highly visible in white soles for footwear, besides presenting changes in its properties. Its importance varies according to the application of the material for which it was created. The most common way to detect this process is through a visual color change on the surface. In the present proposal we present a technique using digital photography for quantifying the color change in the polymer. The analysis of the photography is realized by means of projective geometry, since, relates the plane of the object and the one of the image of the object. This allows determining the area of the studied object, and by means of a histogram, which is determined each time for to record the progress of oxidation on the surface of the material. We present results of visual analysis and its behavior through a mathematical model.

Paper Details

Date Published: 3 December 2009
PDF: 6 pages
Proc. SPIE 7499, Seventh Symposium Optics in Industry, 74990S (3 December 2009); doi: 10.1117/12.851120
Show Author Affiliations
J. Yáñez M., CIATEC, A.C. (Mexico)
A. Estrada M., CIATEC, A.C. (Mexico)

Published in SPIE Proceedings Vol. 7499:
Seventh Symposium Optics in Industry
Guillermo García Torales; Jorge L. Flores Núñez; Gilberto Gómez Rosas; Eric Rosas, Editor(s)

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