A Discriminative Model for Early Detection of Anthracnose in Strawberry Plants Based on Hyperspectral Imaging Technology

Strawberry anthracnose, caused by <i>Colletotrichum</i> spp., is a major disease that causes tremendous damage to cultivated strawberry plants (<i>Fragaria</i> × <i>ananassa</i> Duch.). Examining and distinguishing plants potentially carrying the pathogen is one o...

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Main Authors: Chao Liu, Yifei Cao, Ejiao Wu, Risheng Yang, Huanliang Xu, Yushan Qiao
Format: Article
Language:English
Published: MDPI AG 2023-09-01
Series:Remote Sensing
Subjects:
Online Access:https://www.mdpi.com/2072-4292/15/18/4640
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author Chao Liu
Yifei Cao
Ejiao Wu
Risheng Yang
Huanliang Xu
Yushan Qiao
author_facet Chao Liu
Yifei Cao
Ejiao Wu
Risheng Yang
Huanliang Xu
Yushan Qiao
author_sort Chao Liu
collection DOAJ
description Strawberry anthracnose, caused by <i>Colletotrichum</i> spp., is a major disease that causes tremendous damage to cultivated strawberry plants (<i>Fragaria</i> × <i>ananassa</i> Duch.). Examining and distinguishing plants potentially carrying the pathogen is one of the most effective ways to prevent and control strawberry anthracnose disease. Herein, we used this method on <i>Colletotrichum gloeosporioides</i> at the crown site on indoor strawberry plants and established a classification and distinguishing model based on measurement of the spectral and textural characteristics of the disease-free zone near the disease center. The results, based on the successive projection algorithm (SPA), competitive adaptive reweighted sampling (CARS), and interval random frog (IRF), extracted 5, 14, and 11 characteristic wavelengths, respectively. The SPA extracted fewer effective characteristic wavelengths, while IRF covered more information. A total of 12 dimensional texture features (TFs) were extracted from the first three minimum noise fraction (MNF) images using a grayscale co-occurrence matrix (GLCM). The combined dataset modeling of spectral and TFs performed better than single-feature modeling. The accuracy rates of the IRF + TF + BP model test set for healthy, asymptomatic, and symptomatic samples were 99.1%, 93.5%, and 94.5%, the recall rates were 100%, 94%, and 93%, and the F1 scores were 0.9955, 0.9375, and 0.9374, respectively. The total modeling time was 10.9 s, meaning that this model demonstrated the best comprehensive performance of all the constructed models. The model lays a technical foundation for the early, non-destructive detection of strawberry anthracnose.
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spelling doaj.art-ea775b62cccb465f8febbca47add33122023-11-19T12:50:35ZengMDPI AGRemote Sensing2072-42922023-09-011518464010.3390/rs15184640A Discriminative Model for Early Detection of Anthracnose in Strawberry Plants Based on Hyperspectral Imaging TechnologyChao Liu0Yifei Cao1Ejiao Wu2Risheng Yang3Huanliang Xu4Yushan Qiao5College of Horticulture, Nanjing Agricultural University, Nanjing 210014, ChinaCollege of Horticulture, Nanjing Agricultural University, Nanjing 210014, ChinaJiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Institute of Pomology, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, ChinaCollege of Horticulture, Nanjing Agricultural University, Nanjing 210014, ChinaCollege of Horticulture, Nanjing Agricultural University, Nanjing 210014, ChinaCollege of Horticulture, Nanjing Agricultural University, Nanjing 210014, ChinaStrawberry anthracnose, caused by <i>Colletotrichum</i> spp., is a major disease that causes tremendous damage to cultivated strawberry plants (<i>Fragaria</i> × <i>ananassa</i> Duch.). Examining and distinguishing plants potentially carrying the pathogen is one of the most effective ways to prevent and control strawberry anthracnose disease. Herein, we used this method on <i>Colletotrichum gloeosporioides</i> at the crown site on indoor strawberry plants and established a classification and distinguishing model based on measurement of the spectral and textural characteristics of the disease-free zone near the disease center. The results, based on the successive projection algorithm (SPA), competitive adaptive reweighted sampling (CARS), and interval random frog (IRF), extracted 5, 14, and 11 characteristic wavelengths, respectively. The SPA extracted fewer effective characteristic wavelengths, while IRF covered more information. A total of 12 dimensional texture features (TFs) were extracted from the first three minimum noise fraction (MNF) images using a grayscale co-occurrence matrix (GLCM). The combined dataset modeling of spectral and TFs performed better than single-feature modeling. The accuracy rates of the IRF + TF + BP model test set for healthy, asymptomatic, and symptomatic samples were 99.1%, 93.5%, and 94.5%, the recall rates were 100%, 94%, and 93%, and the F1 scores were 0.9955, 0.9375, and 0.9374, respectively. The total modeling time was 10.9 s, meaning that this model demonstrated the best comprehensive performance of all the constructed models. The model lays a technical foundation for the early, non-destructive detection of strawberry anthracnose.https://www.mdpi.com/2072-4292/15/18/4640hyperspectralstrawberry anthracnosecharacteristic wavelengthtexture featuresconvolutional neural network
spellingShingle Chao Liu
Yifei Cao
Ejiao Wu
Risheng Yang
Huanliang Xu
Yushan Qiao
A Discriminative Model for Early Detection of Anthracnose in Strawberry Plants Based on Hyperspectral Imaging Technology
Remote Sensing
hyperspectral
strawberry anthracnose
characteristic wavelength
texture features
convolutional neural network
title A Discriminative Model for Early Detection of Anthracnose in Strawberry Plants Based on Hyperspectral Imaging Technology
title_full A Discriminative Model for Early Detection of Anthracnose in Strawberry Plants Based on Hyperspectral Imaging Technology
title_fullStr A Discriminative Model for Early Detection of Anthracnose in Strawberry Plants Based on Hyperspectral Imaging Technology
title_full_unstemmed A Discriminative Model for Early Detection of Anthracnose in Strawberry Plants Based on Hyperspectral Imaging Technology
title_short A Discriminative Model for Early Detection of Anthracnose in Strawberry Plants Based on Hyperspectral Imaging Technology
title_sort discriminative model for early detection of anthracnose in strawberry plants based on hyperspectral imaging technology
topic hyperspectral
strawberry anthracnose
characteristic wavelength
texture features
convolutional neural network
url https://www.mdpi.com/2072-4292/15/18/4640
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