Calculations of the average relative intensities of clay, sand, and silt in agricultural soil samples using a speckle methodology.

Authors

Sidney Leal da Silva, Patrícia Vanessa Pereira Barcellos, Douglas Ribas De Mattos, Felipe Maia Prado, Luis Eduardo Rissato Zamariolli, Fábio Esteves da Silva, Gustavo Di Chiacchio Faulin, Niklaus Ursus Wetter

Published in

Journal of the Optical Society of America. A, Optics, image science, and vision. Volume 43. Issue 9. Pages E1-E8. Sep 01, 2026.

Abstract

Study aimed to obtain reference curves of speckle pattern intensity to verify contrasts between soil classifications: clayey, very clayey, silty, sandy, and medium. Normalizations were performed using proportionality factors of known concentrations of the mineral materials: clay, sand, and silt. The application was to determine the classifications and concentrations of two occult samples from the cataloged intensity averages. Speckle methodology was used for data collection and analysis. The intensities of the classifications silty (0.429±0.017), very clayey (0.498±0.019), clayey (0.506±0.021), sandy (0.518±0.021), and medium (0.528±0.022) show good accuracy to the methodology.

PMID:
42862954
Bibliographic data and abstract were imported from PubMed on 13 Oct 2026.

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