Detection and discrimination of cotton foreign matter using push-broom based hyperspectral imaging: system design and capability

PloS One
Yu Jiang, Changying Li

Abstract

Cotton quality, a major factor determining both cotton profitability and marketability, is affected by not only the overall quantity of but also the type of the foreign matter. Although current commercial instruments can measure the overall amount of the foreign matter, no instrument can differentiate various types of foreign matter. The goal of this study was to develop a hyperspectral imaging system to discriminate major types of foreign matter in cotton lint. A push-broom based hyperspectral imaging system with a custom-built multi-thread software was developed to acquire hyperspectral images of cotton fiber with 15 types of foreign matter commonly found in the U.S. cotton lint. A total of 450 (30 replicates for each foreign matter) foreign matter samples were cut into 1 by 1 cm2 pieces and imaged on the lint surface using reflectance mode in the spectral range from 400-1000 nm. The mean spectra of the foreign matter and lint were extracted from the user-defined region-of-interests in the hyperspectral images. The principal component analysis was performed on the mean spectra to reduce the feature dimension from the original 256 bands to the top 3 principal components. The score plots of the 3 principal components were used ...Continue Reading

References

Jun 1, 2007·Journal of Agricultural and Food Chemistry·Gary R Gamble, Jonn A Foulk
Aug 16, 2013·Bioinformatics·Christophe LemetreZhengdong D Zhang

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BETA
X-ray
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