15 September 2006 Study of the exploitation of speckle techniques for pavement surface characterization
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Proceedings Volume 6341, Speckle06: Speckles, From Grains to Flowers; 63412A (2006) https://doi.org/10.1117/12.695496
Event: Speckle06: Speckles, From Grains to Flowers, 2006, Nimes, France
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.
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Catherine Hun, Catherine Hun, Michel Bruynooghe, Michel Bruynooghe, Jean-Marie Caussignac, Jean-Marie Caussignac, Patrick Meyrueis, Patrick Meyrueis, } "Study of the exploitation of speckle techniques for pavement surface characterization", Proc. SPIE 6341, Speckle06: Speckles, From Grains to Flowers, 63412A (15 September 2006); doi: 10.1117/12.695496; https://doi.org/10.1117/12.695496

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