Enhancing paddy leaf disease diagnosis -a hybrid CNN model using simulated thermal imaging

Rice, as a staple crop globally, requires proactive and accurate disease detection to ensure sustainable production. This study introduces a novel hybrid Deep Learning approach integrating thermal imaging and model hybridization for early and precise detection of rice leaf diseases. A dataset of 5,9...

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Main Authors: Jagamohan Padhi, Kunal Mishra, Ashoka Kumar Ratha, Santi Kumari Behera, Prabira Kumar Sethy, Aziz Nanthaamornphong
Format: Article
Language:English
Published: Elsevier 2025-03-01
Series:Smart Agricultural Technology
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Online Access:http://www.sciencedirect.com/science/article/pii/S2772375525000486
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author Jagamohan Padhi
Kunal Mishra
Ashoka Kumar Ratha
Santi Kumari Behera
Prabira Kumar Sethy
Aziz Nanthaamornphong
author_facet Jagamohan Padhi
Kunal Mishra
Ashoka Kumar Ratha
Santi Kumari Behera
Prabira Kumar Sethy
Aziz Nanthaamornphong
author_sort Jagamohan Padhi
collection DOAJ
description Rice, as a staple crop globally, requires proactive and accurate disease detection to ensure sustainable production. This study introduces a novel hybrid Deep Learning approach integrating thermal imaging and model hybridization for early and precise detection of rice leaf diseases. A dataset of 5,932 self-generated rice leaf images was augmented with simulated thermal images to capture subtle temperature variations indicative of early stress responses prior to visible symptoms. This novel use of thermal imaging enhances disease diagnosis efficiency and practicality. Eighteen Convolutional Neural Network (CNN) models were evaluated using transfer learning, with statistical analysis via Duncan's multiple range test (DMRT) identifying Darknet53 as the best-performing model, achieving an accuracy of 95.79 %, sensitivity of 95.79 %, specificity of 95.93 %, and an F1 score of 0.96. To further improve performance, Darknet53 was hybridized by replacing its dense layer with a Support Vector Machine (SVM), resulting in significant enhancements. The hybrid model achieved 99.43 % accuracy, 99.43 % sensitivity, 99.81 % specificity, and an F1 score of 0.99. These results highlight the model's potential for real-time deployment in agricultural applications, providing an efficient and reliable solution for small-scale farmers. This research underscores the value of integrating thermal imaging with Deep Learning for advancing crop disease management and offers a framework for addressing other crop pathologies.
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spelling doaj-art-485eea76e6f24acdb480c5b5d17227b42025-02-06T05:13:03ZengElsevierSmart Agricultural Technology2772-37552025-03-0110100814Enhancing paddy leaf disease diagnosis -a hybrid CNN model using simulated thermal imagingJagamohan Padhi0Kunal Mishra1Ashoka Kumar Ratha2Santi Kumari Behera3Prabira Kumar Sethy4Aziz Nanthaamornphong5Department of Electronics, Sambalpur University, Sambalpur, Odisha, 768 019, IndiaDepartment of Computer Science and Engineering, SUIIT, Sambalpur University, Odisha, 768019, IndiaDepartment of Electronics, Sambalpur University, Sambalpur, Odisha, 768 019, IndiaDepartment of Computer Science and Engineering, VSSUT Burla, Odisha 768019, IndiaCorresponding authors.; Department of Electronics, Sambalpur University, Sambalpur, Odisha, 768 019, IndiaCorresponding authors.; College of Computing, Prince of Songkla University, Phuket campus, 83120, ThailandRice, as a staple crop globally, requires proactive and accurate disease detection to ensure sustainable production. This study introduces a novel hybrid Deep Learning approach integrating thermal imaging and model hybridization for early and precise detection of rice leaf diseases. A dataset of 5,932 self-generated rice leaf images was augmented with simulated thermal images to capture subtle temperature variations indicative of early stress responses prior to visible symptoms. This novel use of thermal imaging enhances disease diagnosis efficiency and practicality. Eighteen Convolutional Neural Network (CNN) models were evaluated using transfer learning, with statistical analysis via Duncan's multiple range test (DMRT) identifying Darknet53 as the best-performing model, achieving an accuracy of 95.79 %, sensitivity of 95.79 %, specificity of 95.93 %, and an F1 score of 0.96. To further improve performance, Darknet53 was hybridized by replacing its dense layer with a Support Vector Machine (SVM), resulting in significant enhancements. The hybrid model achieved 99.43 % accuracy, 99.43 % sensitivity, 99.81 % specificity, and an F1 score of 0.99. These results highlight the model's potential for real-time deployment in agricultural applications, providing an efficient and reliable solution for small-scale farmers. This research underscores the value of integrating thermal imaging with Deep Learning for advancing crop disease management and offers a framework for addressing other crop pathologies.http://www.sciencedirect.com/science/article/pii/S2772375525000486Rice leaf diseaseDeep learningCNNCrop yieldAgricultureFood security
spellingShingle Jagamohan Padhi
Kunal Mishra
Ashoka Kumar Ratha
Santi Kumari Behera
Prabira Kumar Sethy
Aziz Nanthaamornphong
Enhancing paddy leaf disease diagnosis -a hybrid CNN model using simulated thermal imaging
Smart Agricultural Technology
Rice leaf disease
Deep learning
CNN
Crop yield
Agriculture
Food security
title Enhancing paddy leaf disease diagnosis -a hybrid CNN model using simulated thermal imaging
title_full Enhancing paddy leaf disease diagnosis -a hybrid CNN model using simulated thermal imaging
title_fullStr Enhancing paddy leaf disease diagnosis -a hybrid CNN model using simulated thermal imaging
title_full_unstemmed Enhancing paddy leaf disease diagnosis -a hybrid CNN model using simulated thermal imaging
title_short Enhancing paddy leaf disease diagnosis -a hybrid CNN model using simulated thermal imaging
title_sort enhancing paddy leaf disease diagnosis a hybrid cnn model using simulated thermal imaging
topic Rice leaf disease
Deep learning
CNN
Crop yield
Agriculture
Food security
url http://www.sciencedirect.com/science/article/pii/S2772375525000486
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