Identification of leaf diseases in field crops based on improved ShuffleNetV2

Rapid and accurate identification and timely protection of crop disease is of great importance for ensuring crop yields. Aiming at the problems of large model parameters of existing crop disease recognition methods and low recognition accuracy in the complex background of the field, we propose a lig...

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Main Authors: Hanmi Zhou, Jiageng Chen, Xiaoli Niu, Zhiguang Dai, Long Qin, Linshuang Ma, Jichen Li, Yumin Su, Qi Wu
Format: Article
Language:English
Published: Frontiers Media S.A. 2024-03-01
Series:Frontiers in Plant Science
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fpls.2024.1342123/full
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author Hanmi Zhou
Jiageng Chen
Xiaoli Niu
Zhiguang Dai
Long Qin
Linshuang Ma
Jichen Li
Yumin Su
Qi Wu
author_facet Hanmi Zhou
Jiageng Chen
Xiaoli Niu
Zhiguang Dai
Long Qin
Linshuang Ma
Jichen Li
Yumin Su
Qi Wu
author_sort Hanmi Zhou
collection DOAJ
description Rapid and accurate identification and timely protection of crop disease is of great importance for ensuring crop yields. Aiming at the problems of large model parameters of existing crop disease recognition methods and low recognition accuracy in the complex background of the field, we propose a lightweight crop leaf disease recognition model based on improved ShuffleNetV2. First, the repetition number and the number of output channels of the basic module of the ShuffleNetV2 model are redesigned to reduce the model parameters to make the model more lightweight while ensuring the accuracy of the model. Second, the residual structure is introduced in the basic feature extraction module to solve the gradient vanishing problem and enable the model to learn more complex feature representations. Then, parallel paths were added to the mechanism of the efficient channel attention (ECA) module, and the weights of different paths were adaptively updated by learnable parameters, and then the efficient dual channel attention (EDCA) module was proposed, which was embedded into the ShuffleNetV2 to improve the cross-channel interaction capability of the model. Finally, a multi-scale shallow feature extraction module and a multi-scale deep feature extraction module were introduced to improve the model’s ability to extract lesions at different scales. Based on the above improvements, a lightweight crop leaf disease recognition model REM-ShuffleNetV2 was proposed. Experiments results show that the accuracy and F1 score of the REM-ShuffleNetV2 model on the self-constructed field crop leaf disease dataset are 96.72% and 96.62%, which are 3.88% and 4.37% higher than that of the ShuffleNetV2 model; and the number of model parameters is 4.40M, which is 9.65% less than that of the original model. Compared with classic networks such as DenseNet121, EfficientNet, and MobileNetV3, the REM-ShuffleNetV2 model not only has higher recognition accuracy but also has fewer model parameters. The REM-ShuffleNetV2 model proposed in this study can achieve accurate identification of crop leaf disease in complex field backgrounds, and the model is small, which is convenient to deploy to the mobile end, and provides a reference for intelligent diagnosis of crop leaf disease.
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spelling doaj.art-5094d604df3247f89b2e727c9ff6da062024-03-11T04:57:45ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2024-03-011510.3389/fpls.2024.13421231342123Identification of leaf diseases in field crops based on improved ShuffleNetV2Hanmi Zhou0Jiageng Chen1Xiaoli Niu2Zhiguang Dai3Long Qin4Linshuang Ma5Jichen Li6Yumin Su7Qi Wu8College of Agricultural Engineering, Henan University of Science and Technology, Luoyang, ChinaCollege of Agricultural Engineering, Henan University of Science and Technology, Luoyang, ChinaCollege of Agricultural Engineering, Henan University of Science and Technology, Luoyang, ChinaCollege of Agricultural Engineering, Henan University of Science and Technology, Luoyang, ChinaCollege of Agricultural Engineering, Henan University of Science and Technology, Luoyang, ChinaCollege of Agricultural Engineering, Henan University of Science and Technology, Luoyang, ChinaCollege of Agricultural Engineering, Henan University of Science and Technology, Luoyang, ChinaCollege of Agricultural Engineering, Henan University of Science and Technology, Luoyang, ChinaCollege of Water Resource, Shenyang Agricultural University, Shenyang, ChinaRapid and accurate identification and timely protection of crop disease is of great importance for ensuring crop yields. Aiming at the problems of large model parameters of existing crop disease recognition methods and low recognition accuracy in the complex background of the field, we propose a lightweight crop leaf disease recognition model based on improved ShuffleNetV2. First, the repetition number and the number of output channels of the basic module of the ShuffleNetV2 model are redesigned to reduce the model parameters to make the model more lightweight while ensuring the accuracy of the model. Second, the residual structure is introduced in the basic feature extraction module to solve the gradient vanishing problem and enable the model to learn more complex feature representations. Then, parallel paths were added to the mechanism of the efficient channel attention (ECA) module, and the weights of different paths were adaptively updated by learnable parameters, and then the efficient dual channel attention (EDCA) module was proposed, which was embedded into the ShuffleNetV2 to improve the cross-channel interaction capability of the model. Finally, a multi-scale shallow feature extraction module and a multi-scale deep feature extraction module were introduced to improve the model’s ability to extract lesions at different scales. Based on the above improvements, a lightweight crop leaf disease recognition model REM-ShuffleNetV2 was proposed. Experiments results show that the accuracy and F1 score of the REM-ShuffleNetV2 model on the self-constructed field crop leaf disease dataset are 96.72% and 96.62%, which are 3.88% and 4.37% higher than that of the ShuffleNetV2 model; and the number of model parameters is 4.40M, which is 9.65% less than that of the original model. Compared with classic networks such as DenseNet121, EfficientNet, and MobileNetV3, the REM-ShuffleNetV2 model not only has higher recognition accuracy but also has fewer model parameters. The REM-ShuffleNetV2 model proposed in this study can achieve accurate identification of crop leaf disease in complex field backgrounds, and the model is small, which is convenient to deploy to the mobile end, and provides a reference for intelligent diagnosis of crop leaf disease.https://www.frontiersin.org/articles/10.3389/fpls.2024.1342123/fullcomplex backgroundcrop leaf diseaseShuffleNetV2EDCA moduleresidual structure
spellingShingle Hanmi Zhou
Jiageng Chen
Xiaoli Niu
Zhiguang Dai
Long Qin
Linshuang Ma
Jichen Li
Yumin Su
Qi Wu
Identification of leaf diseases in field crops based on improved ShuffleNetV2
Frontiers in Plant Science
complex background
crop leaf disease
ShuffleNetV2
EDCA module
residual structure
title Identification of leaf diseases in field crops based on improved ShuffleNetV2
title_full Identification of leaf diseases in field crops based on improved ShuffleNetV2
title_fullStr Identification of leaf diseases in field crops based on improved ShuffleNetV2
title_full_unstemmed Identification of leaf diseases in field crops based on improved ShuffleNetV2
title_short Identification of leaf diseases in field crops based on improved ShuffleNetV2
title_sort identification of leaf diseases in field crops based on improved shufflenetv2
topic complex background
crop leaf disease
ShuffleNetV2
EDCA module
residual structure
url https://www.frontiersin.org/articles/10.3389/fpls.2024.1342123/full
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