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Proceedings Paper

Study of the exploitation of speckle techniques for pavement surface characterization
Author(s): Catherine Hun; Michel Bruynooghe; Jean-Marie Caussignac; Patrick Meyrueis
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Paper Abstract

As an alternative to profilometry, speckle techniques are investigated to characterize pavement microtexture in case of a subjective speckle whose grains are not resolved by the recording system. In view of the lack of information available regarding the application of speckle techniques to multi-scale surfaces and considering the particular experimental configuration we selected, some simulations of the speckle contrast are carried out using the scalar diffraction theory of Kirchhoff in case of a two-scale surface texture. We study the relative influence of each scale characteristics. Subsequently, specklegram recording and processing are designed to take into account the characteristics of pavement surfaces. Tests are carried out with some reference surfaces without macrotexture and with some models of pavement surfaces. We show that we can achieve to discriminate the reference surfaces and, under some conditions, the models of pavement surfaces by recording several specklegrams and by analyzing the contrast value distribution.

Paper Details

Date Published: 15 September 2006
PDF: 6 pages
Proc. SPIE 6341, Speckle06: Speckles, From Grains to Flowers, 63412A (15 September 2006); doi: 10.1117/12.695496
Show Author Affiliations
Catherine Hun, Ecole Nationale Supérieure de Physique de Strasbourg (France)
Michel Bruynooghe, Ecole Nationale Supérieure de Physique de Strasbourg (France)
Jean-Marie Caussignac, Lab. Central des Ponts et Chaussées (France)
Patrick Meyrueis, Ecole Nationale Supérieure de Physique de Strasbourg (France)

Published in SPIE Proceedings Vol. 6341:
Speckle06: Speckles, From Grains to Flowers
Pierre Slangen; Christine Cerruti, Editor(s)

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