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Proceedings Paper

Portable fluorescence spectroscopy platform for Huanglongbing (HLB) citrus disease in situ detection
Author(s): Alessandro D. Mota; Giuliano Rossi; Guilherme Cunha de Castro; Tiago A. Ortega; Jarbas C. de Castro N.
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Paper Abstract

In this work, the development of a portable fluorescence spectroscopy platform for Huanglongbing (HLB) citrus disease in situ detection is presented. The equipment consists of an excitation blue LED light source, a commercial miniature spectrometer and embedded software. Measurements of healthy, HLB-symptomatic and HLB-asymptomatic citrus leafs were performed. Leafs were excited with the blue LED and their fluorescence spectra collected. Embedded electronics and software were responsible for the spectrum processing and classification via partial least squares regression. Global success rates above 80% and 100% distinction of healthy and HLB-symptomatic leafs were obtained.

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Paper Details

Date Published: 27 February 2014
PDF: 9 pages
Proc. SPIE 9003, Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XVIII, 90031U (27 February 2014); doi: 10.1117/12.2051361
Show Author Affiliations
Alessandro D. Mota, AgriOS (Brazil)
Giuliano Rossi, AgriOS (Brazil)
Guilherme Cunha de Castro, AgriOS (Brazil)
Tiago A. Ortega, Univ. de São Paulo (Brazil)
AgriOS (Brazil)
Jarbas C. de Castro N., Univ. de São Paulo (Brazil)


Published in SPIE Proceedings Vol. 9003:
Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XVIII
Klaus P. Streubel; Heonsu Jeon; Li-Wei Tu; Martin Strassburg, Editor(s)

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