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PIER PIER B PIER C PIER M PIER Letters
2007-12-04
Empirical Characterization of Wood Surfaces by Means of Iterative Autocorrelation of Laser Speckle Patterns.
By
Juan-Antonio Martinez-Rojas,

    Dr. Juan-Antonio Martinez-Rojas

    Department of Signal Theory and Communications

    Universidad de Alcala Escuela Politecnica Superior

    Spain

    Homepage

Jesus Alpuente-Hermosilla,

    Dr. Jesus Alpuente-Hermosilla

    Department of Signal Theory and Communications

    Universidad de Alcala Escuela Politecnica Superior

    Spain

    Homepage

Estefania Bolivar,

    Dr. Estefania Bolivar

    Department of Signal Theory and Communications

    Universidad de Alcala Escuela Politecnica Superior

    Spain

    Homepage

Pablo-Luis Lopez-Espi,

    Dr. Pablo-Luis Lopez-Espi

    Department of Signal Theory and Communications

    Universidad de Alcala Escuela Politecnica Superior

    Spain

    Homepage

Santiago Vignote,

    Dr. Santiago Vignote

    Department of Signal Theory and Communications

    Universidad de Alcala Escuela Politecnica Superior

    Spain

    Homepage

Martinez Rojas

    Dr. Martinez Rojas

    Wood Technology Department

    Universidad Politecnica de Madrid

    Spain

    Homepage

Progress In Electromagnetics Research, Vol. 80, 295-306, 2008
doi:10.2528/PIER07112706
Abstract
A simple and inexpensive method for the qualitative characterization of wood surfaces is presented. It is based on the iterative autocorrelation of laser speckle patterns produced by diffuse laser illumination of the wood surfaces.The method exploits the high spatial frequency content of speckle images. A similar approach with raw conventional photographs taken with ordinary light would be very difficult. A few iterations of the algorithm are necessary, typically three or four, in order to visualize the most important periodic features of the surface. The processed patterns help in the study of surface parameters, to design new scattering models and to classify the wood species.
Citation
Juan-Antonio Martinez-Rojas, Jesus Alpuente-Hermosilla, Estefania Bolivar, Pablo-Luis Lopez-Espi, Santiago Vignote, and Martinez Rojas, "Empirical Characterization of Wood Surfaces by Means of Iterative Autocorrelation of Laser Speckle Patterns.," Progress In Electromagnetics Research, Vol. 80, 295-306, 2008.
doi:10.2528/PIER07112706
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