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Identification of Bacterial Blight Resistant Rice Seeds Using Terahertz Imaging and Hyperspectral Imaging Combined With Convolutional Neural Network

文献类型： 外文期刊

作者： Zhang, Jinnuo 1 ; Yang, Yong 2 ; Feng, Xuping 1 ; Xu, Hongxia 2 ; Chen, Jianping 2 ; He, Yong 1 ;

作者机构： 1.Zhejiang Univ, Coll Biosyst Engn & Food Sci, Key Lab Spect, Minist Agr & Rural Affairs, Hangzhou, Peoples R China

2.Zhejiang Acad Agr Sci, State Key Lab Managing Biot & Chem Threats Qual &, Minist Agr & Rural Affairs,Zhejiang Prov Key Lab, Key Lab Biotechnol Plant Protect,Inst Virol & Bio, Hangzhou, Peoples R China

3.Ningbo Univ, State Key Lab Managing Biot & Chem Threats Qual &, Minist Agr & Rural Affairs,Zhejiang Prov Key Lab, Key Lab Biotechnol Plant Protect,Inst Plant Virol, Ningbo, Peoples R China

关键词： terahertz imaging technology; near-infrared hyperspectral imaging technology; rice bacterial blight; convolutional neural network; seed identification

期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：5.753； 五年影响因子：6.612 ）

ISSN： 1664-462X

年卷期： 2020 年 11 卷

页码：

收录情况： SCI

摘要： Because bacterial blight (BB) disease seriously affects the yield and quality of rice, breeding BB resistant rice is an important priority for plant breeders but the process is time-consuming. The feasibility of using terahertz imaging technology and near-infrared hyperspectral imaging technology to identify BB resistant seeds has therefore been studied. The two-dimensional (2D) spectral images and one-dimensional (1D) spectra provided by both imaging methods were used to build discriminant models based on a deep learning method, the convolutional neural network (CNN), and traditional machine learning methods, support vector machine (SVM), random forest (RF), and partial least squares discriminant analysis (PLS-DA). The highest classification accuracy was achieved by the discriminate model based on CNN using the terahertz absorption spectra. Confusion matrixes were pictured to show the identification details. The t-distributed stochastic neighbor embedding (t-SNE) method was used to visualize the process of CNN data processing. Terahertz imaging technology combined with CNN has great potential to quickly identify BB resistant rice seeds and is more accurate than using near-infrared hyperspectral imaging.

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