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23 April 2020 A low cost multispectral detector for fruit quality assessment (Conference Presentation)
Hardit Singh, Aneesh Sridhar, Simarjeet S. Saini
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Proceedings Volume 11421, Sensing for Agriculture and Food Quality and Safety XII; 1142105 (2020) https://doi.org/10.1117/12.2556648
Event: SPIE Defense + Commercial Sensing, 2020, Online Only
Abstract
A very low cost multispectral detector is developed and bench marked with full spectrometer measurements by measuring internal quality parameters of kiwis. The multispectator detector uses self-referenced reflectance to reduce measurement variations. It is demonstrated that even when using only twelve wavelengths, only a small loss of accuracy occurs with respect to a spectrometer in measurements of solid soluble content and dry matter. Further, using classification, similar accuracy is achieved in placing the fruits in bins based on their quality parameters. The measurements are rapid (less than 5 seconds), non-destructive and the system costs less than $50.
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Hardit Singh, Aneesh Sridhar, and Simarjeet S. Saini "A low cost multispectral detector for fruit quality assessment (Conference Presentation)", Proc. SPIE 11421, Sensing for Agriculture and Food Quality and Safety XII, 1142105 (23 April 2020); https://doi.org/10.1117/12.2556648
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KEYWORDS
Sensors
Spectroscopy
Light emitting diodes
Calibration
Nondestructive evaluation
Reflectivity
Sensor performance
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