Polarimetric observables for the enhanced visualization of plant diseases
Serra i Ribas, Mireia
This paper highlights the potential of using polarimetric methods for the inspection of plant diseased tissues. We show how depolarizing observables are a suitable tool for the accurate discrimination between healthy and diseased tissues due to the pathogen infection of plant samples. The analysis is conducted on a set of different plant specimens showing various disease symptoms and infection stages. By means of a complete image Mueller polarimeter, we measure the experimental Mueller matrices of the samples, from which we calculate a set of metrics analyzing the depolarization content of the inspected leaves. From calculated metrics, we demonstrate, in a qualitative and quantitative way, how depolarizing information of vegetal tissues leads to the enhancement of image contrast between healthy and diseased tissues, as well as to the revelation of wounded regions which cannot be detected by means of regular visual inspections. Moreover, we also propose a pseudo-colored image method, based on the depolarizing metrics, capable to further enhance the visual image contrast between healthy and diseased regions in plants. The ability of proposed methods to characterize plant diseases (even at early stages of infection) may be of interest for preventing yield losses due to different plant pathogens.
632 - Malalties i protecció de les plantes
Is part of
Rodríguez, Carla, Enrique Garcia-Caurel, Teresa Garnatje, Mireia Serra i Ribas, Jordi Luque, Juan Campos, and Angel Lizana. 2022. "Polarimetric Observables For The Enhanced Visualization Of Plant Diseases". Scientific Reports 12 (1). doi:10.1038/s41598-022-19088-6.
Grant agreement number
MINECO/Programa Estatal de I+D+I orientada a los retos de la sociedad/RTI2018-097107-B-C31/ES/DESARROLLO DE INSTRUMENTACION POLARIMETRICA AVANZADA PARA LA CARACTERIZACION DE MATERIALES Y TEJIDOS; Y METROLOGIA DE SUPERFICIES POR DEFLECTOMETRIA/
Protecció Vegetal Sostenible
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- ARTICLES CIENTÍFICS 
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Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by/4.0/