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Electronic Journal of Biotechnology
Universidad Católica de Valparaíso
ISSN: 0717-3458
Vol. 8, No. 3, 2005, pp. 265-275
Bioline Code: ej05030
Full paper language: English
Document type: Research Article
Document available free of charge

Electronic Journal of Biotechnology, Vol. 8, No. 3, 2005, pp. 265-275

 en Comparison of shape analysis methods for Guinardia citricarpa check for this species in other resources ascospore characterization
Pazoti, Mário Augusto; Garcia, Rogério Eduardo; Pessoa, José Dalton Cruz & Bruno, Odemir Martinez

Abstract

Among the diseases affecting the commercial citrus production, the citrus black spot (CBS) is considered to cause substantial losses. The analyses of particles in suspension in the orchards and collected into a disc have been applied as a preventive action trying to identify the presence of fungus spores before symptom appearance. In this paper, we show the results of several shape analysis methods applied to the fungus, the first step to the aimed computer aided vision system, capable to assist the identification process. Experiments and comparative results among the methods are presented in this paper, showing that better results were obtained applying the curvature method.

Keywords
computer vision, curvature, pattern recognition, shape analysis, shape signature and projection.

 
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