Classification of individual cotton seeds with respect to variety using near-infrared hyperspectral imaging

Autor(es)

Carreiro Soares, Sofacles Figueredo ; Medeiros, Everaldo Paulo ; Pasquini, Celio ; Morello, Camilo de Lelis ; Harrop Galvao, Roberto Kawakami ; Ugulino Araujo, Mario Cesar

• Tipo de documento: Artigo Científico
• Fonte: ANALYTICAL METHODS; v. 8, n. 48, p. 8498-8505, 2016.
• Citações Web of Science: 6

Resumo

This paper proposes the use of Near Infrared Hyperspectral Imaging (NIR-HSI) as a new strategy for fast and non-destructive classification of cotton seeds with respect to variety. A total of 807 seeds of four different cotton varieties are employed in this study. For classification purposes, each seed is represented by an average spectrum obtained by coaveraging the pixel spectra of the NIR-HSI image. Conventional NIR and VIS-NIR spectra are also employed for comparison. By using Partial-Least-Squares Discriminant Analysis (PLS-DA), correct classification rates of 98.0%, 89.7% and 91.7% were achieved in the NIR-HSI, conventional NIR and conventional VIS-NIR datasets. The superiority of the NIR-HSI system can be ascribed to a more comprehensive scan of the seed area, as compared to the conventional VIS-NIR spectrometer. (AU)

• Processo FAPESP: 08/57808-1 - Instituto Nacional de Ciências e Tecnologias Analíticas Avançadas - INCTAA
• Beneficiário: Celio Pasquini
• Modalidade de apoio: Auxílio à Pesquisa - Temático