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Proceedings Paper

Using hyperspectral imaging technology to identify diseased tomato leaves
Author(s): Cuiling Li; Xiu Wang; Xueguan Zhao; Zhijun Meng; Wei Zou
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Paper Abstract

In the process of tomato plants growth, due to the effect of plants genetic factors, poor environment factors, or disoperation of parasites, there will generate a series of unusual symptoms on tomato plants from physiology, organization structure and external form, as a result, they cannot grow normally, and further to influence the tomato yield and economic benefits. Hyperspectral image usually has high spectral resolution, not only contains spectral information, but also contains the image information, so this study adopted hyperspectral imaging technology to identify diseased tomato leaves, and developed a simple hyperspectral imaging system, including a halogen lamp light source unit, a hyperspectral image acquisition unit and a data processing unit. Spectrometer detection wavelength ranged from 400nm to 1000nm. After hyperspectral images of tomato leaves being captured, it was needed to calibrate hyperspectral images. This research used spectrum angle matching method and spectral red edge parameters discriminant method respectively to identify diseased tomato leaves. Using spectral red edge parameters discriminant method produced higher recognition accuracy, the accuracy was higher than 90%. Research results have shown that using hyperspectral imaging technology to identify diseased tomato leaves is feasible, and provides the discriminant basis for subsequent disease control of tomato plants.

Paper Details

Date Published: 3 November 2016
PDF: 7 pages
Proc. SPIE 10030, Infrared, Millimeter-Wave, and Terahertz Technologies IV, 1003011 (3 November 2016); doi: 10.1117/12.2246084
Show Author Affiliations
Cuiling Li, Beijing Research Ctr. of Intelligent Equipment for Agriculture (China)
National Research Ctr. of Intelligent Equipment for Agriculture (China)
Xiu Wang, Beijing Research Ctr. of Intelligent Equipment for Agriculture (China)
National Research Ctr. of Intelligent Equipment for Agriculture (China)
Xueguan Zhao, Beijing Research Ctr. of Intelligent Equipment for Agriculture (China)
National Research Ctr. of Intelligent Equipment for Agriculture (China)
Zhijun Meng, Beijing Research Ctr. of Intelligent Equipment for Agriculture (China)
National Research Ctr. of Intelligent Equipment for Agriculture (China)
Wei Zou, Beijing Research Ctr. of Intelligent Equipment for Agriculture (China)
National Research Ctr. of Intelligent Equipment for Agriculture (China)


Published in SPIE Proceedings Vol. 10030:
Infrared, Millimeter-Wave, and Terahertz Technologies IV
Cunlin Zhang; Xi-Cheng Zhang; Masahiko Tani, Editor(s)

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