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Proceedings Paper

Dynamic speckle texture processing using averaged dimensions
Author(s): Héctor Rabal; Ricardo Arizaga; Nelly Cap; Marcelo Trivi; Adriana Mavilio Nuñez; Margarita Fernandez Limia
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Paper Abstract

Dynamic speckle or biospeckle is a phenomenon generated by laser light scattering in biological tissues. It is also present in some industrial processes where the surfaces exhibit some kind of activity. There are several methods to characterize the dynamic speckle pattern activity. For quantitative measurements, the Inertia Moment of the co occurrence matrix of the temporal history of the speckle pattern (THSP) is usually used. In this work we propose the use of average dimensions (AD) for quantitative classifications of textures of THSP images corresponding to different stages of the sample. The AD method was tested in an experiment with the drying of paint, a non biological phenomenon that we usually use as dynamic speckle initial test. We have chosen this phenomenon because its activity can be followed in a relatively simple way by gravimetric measures and because its behaviour is rather predictable. Also, the AD was applied to numerically simulated THSP images and the performance was compared with other quantitative method. Experiments with biological samples are currently under development.

Paper Details

Date Published: 15 September 2006
PDF: 5 pages
Proc. SPIE 6341, Speckle06: Speckles, From Grains to Flowers, 63412G (15 September 2006); doi: 10.1117/12.695503
Show Author Affiliations
Héctor Rabal, Univ. Nacional de la Plata (Argentina)
Ricardo Arizaga, Univ. Nacional de la Plata (Argentina)
Nelly Cap, Univ. Nacional de la Plata (Argentina)
Marcelo Trivi, Univ. Nacional de la Plata (Argentina)
Adriana Mavilio Nuñez, Instituto Superior Politécnico J.A. Echeverría (Cuba)
Margarita Fernandez Limia, Instituto Superior Politécnico J.A. Echeverría (Cuba)

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

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