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Proceedings Paper

Experimental investigation on light propagation through apple tissue structures
Author(s): Mohamed Lamine Askoura; Vianney Piron; Fabrice Vaudelle; Jean-Pierre L'Huillier; Emmanuel Madieta; Emira Mehinagic
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Paper Abstract

The interaction of light with biological materials, such as fruits and vegetables, is a complex process which involves both absorption, and scattering events at different scales. Measuring the optical properties of a fruit allows understanding the physical and chemical characteristics. In this paper, an optical bench based on the use of a continuous laser source and a CCD camera was developed to study the light diffusion inside apple tissue structures. The method refers to the well-known steady-state spatially resolved method. First, the optoelectronics system was tested with a tissue phantom in order to show the optimal sensing range required to obtain the best estimated optical properties. Second, experimental results were obtained using peeled and unpeeled apples as interrogated tissues. The data were confronted with a diffusion model in order to extract the optical properties at two wavelengths of 633, and 852 nm. To better understand the effect of the apple tissue structures, investigations into the propagation of light through a half cut apple were also performed.

Paper Details

Date Published: 15 July 2015
PDF: 9 pages
Proc. SPIE 9542, Medical Laser Applications and Laser-Tissue Interactions VII, 954218 (15 July 2015); doi: 10.1117/12.2183817
Show Author Affiliations
Mohamed Lamine Askoura, Ecole Supérieure d'Agriculture (France)
Ecole Nationale Supérieure d'Arts et Métiers (France)
Vianney Piron, Ecole Nationale Supérieure d'Arts et Métiers (France)
Fabrice Vaudelle, Ecole Nationale Supérieure d'Arts et Métiers (France)
Jean-Pierre L'Huillier, Ecole Nationale Supérieure d'Arts et Métiers (France)
Emmanuel Madieta, Ecole Superieure d'Agriculture (France)
Emira Mehinagic, Ecole Superieure d'Agriculture (France)

Published in SPIE Proceedings Vol. 9542:
Medical Laser Applications and Laser-Tissue Interactions VII
Lothar D. Lilge; Ronald Sroka, Editor(s)

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