Identification of Wheat Varieties with a Parallel-Plate Capacitance Sensor Using Fisher’s Linear Discriminant Analysis

Fisher’s linear discriminant (FLD) models for wheat variety classification were developed and validated. The inputs to the FLD models were the capacitance ( C ), impedance ( Z ), and phase angle ( θ ), measured at two frequencies. Classification of wheat varieties was obtained as output of the FLD m...

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Bibliographic Details
Published inJournal of sensors Vol. 2014; no. 2014; pp. 1 - 5
Main Authors Settaluri, V., Puppala, N., Govindarajan, K. N., Kandala, Chari V., Reddy, R. S.
Format Journal Article
LanguageEnglish
Published Cairo, Egypt Hindawi Publishing Corporation 01.01.2014
Hindawi Limited
Subjects
Accuracy
Capacitance
Classification
Crystal oscillators
Discriminant analysis
Impedance
Mathematical models
Measuring instruments
Moisture content
Sensors
Wheat
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Summary:Fisher’s linear discriminant (FLD) models for wheat variety classification were developed and validated. The inputs to the FLD models were the capacitance ( C ), impedance ( Z ), and phase angle ( θ ), measured at two frequencies. Classification of wheat varieties was obtained as output of the FLD models. Z and θ of a parallel-plate capacitance system, holding the wheat samples, were measured using an impedance meter, and the C value was computed. The best model developed classified the wheat varieties, with accuracy of 95.4%, over the six wheat varieties tested. This method is simple, rapid, and nondestructive and would be useful for the breeders and the peanut industry.
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ISSN:1687-725X
1687-7268
DOI:10.1155/2014/691898