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Determination of material properties: optical tomography applications

DOI: 10.1615/thermopedia.000199


DETERMINATION OF MATERIAL PROPERTIES: OPTICAL TOMOGRAPHY APPLICATIONS

A. Charette, O. Balima, J. Boulanger, and D. Marceau

1. INTRODUCTION

During the last decade, increasing developments of new optical techniques of clinical controls and medical diagnostics have been achieved. These developments were made possible thanks to advances in the theoretical understanding of the interaction between light and optical properties of semitransparent media such as human tissues. On the other hand, the improvement of light-detection systems as well as light sources that irradiate the tissues was necessary in order to put these techniques into practice. One of the most spectacular of these advances is the possibility to acquire a picture of the spatial distribution of the optical properties of different parts of the body from measurements at the surface. This technology of imaging is known as optical tomography (Arridge, 1999). It consists of identifying the parameters of a numerical model ...

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