Automatic Fuzzy Logic-Based Maize Common Rust Disease Severity Predictions with Thresholding and Deep Learning

Many applications of plant pathology had been enabled by the evolution of artificial intelligence (AI). For instance, many researchers had used pre-trained convolutional neural networks (CNNs) such as the VGG-16, Inception, and Google Net to mention a few, for the classifications of plant diseases....

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Main Authors: Malusi Sibiya, Mbuyu Sumbwanyambe
Format: Article
Language:English
Published: MDPI AG 2021-01-01
Series:Pathogens
Subjects:
Online Access:https://www.mdpi.com/2076-0817/10/2/131
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author Malusi Sibiya
Mbuyu Sumbwanyambe
author_facet Malusi Sibiya
Mbuyu Sumbwanyambe
author_sort Malusi Sibiya
collection DOAJ
description Many applications of plant pathology had been enabled by the evolution of artificial intelligence (AI). For instance, many researchers had used pre-trained convolutional neural networks (CNNs) such as the VGG-16, Inception, and Google Net to mention a few, for the classifications of plant diseases. The trend of using AI for plant disease classification has grown to such an extent that some researchers were able to use artificial intelligence to also detect their severities. The purpose of this study is to introduce a novel approach that is reliable in predicting severities of the maize common rust disease by CNN deep learning models. This was achieved by applying threshold-segmentation on images of diseased maize leaves (Common Rust disease) to extract the percentage of the diseased leaf area which was then used to derive fuzzy decision rules for the assignment of Common Rust images to their severity classes. The four severity classes were then used to train a VGG-16 network in order to automatically classify the test images of the Common Rust disease according to their classes of severity. Trained with images developed by using this proposed approach, the VGG-16 network achieved a validation accuracy of 95.63% and a testing accuracy of 89% when tested on images of the Common Rust disease among four classes of disease severity named Early stage, Middle stage, Late Stage and Healthy stage.
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spelling doaj.art-63255f82b7e04cefa45bae7e24ea455a2023-12-03T14:58:44ZengMDPI AGPathogens2076-08172021-01-0110213110.3390/pathogens10020131Automatic Fuzzy Logic-Based Maize Common Rust Disease Severity Predictions with Thresholding and Deep LearningMalusi Sibiya0Mbuyu Sumbwanyambe1Department of Electrical and Mining Engineering, University of South Africa, 28 Pioneer Ave, Florida Park, Johannesburg, Roodepoort 1709, South AfricaDepartment of Electrical and Mining Engineering, University of South Africa, 28 Pioneer Ave, Florida Park, Johannesburg, Roodepoort 1709, South AfricaMany applications of plant pathology had been enabled by the evolution of artificial intelligence (AI). For instance, many researchers had used pre-trained convolutional neural networks (CNNs) such as the VGG-16, Inception, and Google Net to mention a few, for the classifications of plant diseases. The trend of using AI for plant disease classification has grown to such an extent that some researchers were able to use artificial intelligence to also detect their severities. The purpose of this study is to introduce a novel approach that is reliable in predicting severities of the maize common rust disease by CNN deep learning models. This was achieved by applying threshold-segmentation on images of diseased maize leaves (Common Rust disease) to extract the percentage of the diseased leaf area which was then used to derive fuzzy decision rules for the assignment of Common Rust images to their severity classes. The four severity classes were then used to train a VGG-16 network in order to automatically classify the test images of the Common Rust disease according to their classes of severity. Trained with images developed by using this proposed approach, the VGG-16 network achieved a validation accuracy of 95.63% and a testing accuracy of 89% when tested on images of the Common Rust disease among four classes of disease severity named Early stage, Middle stage, Late Stage and Healthy stage.https://www.mdpi.com/2076-0817/10/2/131VGG-16common rustconvolutional neural networksimage histogramsfuzzy decision rulesOtsu threshold method
spellingShingle Malusi Sibiya
Mbuyu Sumbwanyambe
Automatic Fuzzy Logic-Based Maize Common Rust Disease Severity Predictions with Thresholding and Deep Learning
Pathogens
VGG-16
common rust
convolutional neural networks
image histograms
fuzzy decision rules
Otsu threshold method
title Automatic Fuzzy Logic-Based Maize Common Rust Disease Severity Predictions with Thresholding and Deep Learning
title_full Automatic Fuzzy Logic-Based Maize Common Rust Disease Severity Predictions with Thresholding and Deep Learning
title_fullStr Automatic Fuzzy Logic-Based Maize Common Rust Disease Severity Predictions with Thresholding and Deep Learning
title_full_unstemmed Automatic Fuzzy Logic-Based Maize Common Rust Disease Severity Predictions with Thresholding and Deep Learning
title_short Automatic Fuzzy Logic-Based Maize Common Rust Disease Severity Predictions with Thresholding and Deep Learning
title_sort automatic fuzzy logic based maize common rust disease severity predictions with thresholding and deep learning
topic VGG-16
common rust
convolutional neural networks
image histograms
fuzzy decision rules
Otsu threshold method
url https://www.mdpi.com/2076-0817/10/2/131
work_keys_str_mv AT malusisibiya automaticfuzzylogicbasedmaizecommonrustdiseaseseveritypredictionswiththresholdinganddeeplearning
AT mbuyusumbwanyambe automaticfuzzylogicbasedmaizecommonrustdiseaseseveritypredictionswiththresholdinganddeeplearning