Plant Leaf Disease Recognition Using Depth-Wise Separable Convolution-Based Models

Proper plant leaf disease (PLD) detection is challenging in complex backgrounds and under different capture conditions. For this reason, initially, modified adaptive centroid-based segmentation (ACS) is used to trace the proper region of interest (ROI). Automatic initialization of the number of clus...

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Main Authors: Syed Mohammad Minhaz Hossain, Kaushik Deb, Pranab Kumar Dhar, Takeshi Koshiba
Format: Article
Language:English
Published: MDPI AG 2021-03-01
Series:Symmetry
Subjects:
Online Access:https://www.mdpi.com/2073-8994/13/3/511
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author Syed Mohammad Minhaz Hossain
Kaushik Deb
Pranab Kumar Dhar
Takeshi Koshiba
author_facet Syed Mohammad Minhaz Hossain
Kaushik Deb
Pranab Kumar Dhar
Takeshi Koshiba
author_sort Syed Mohammad Minhaz Hossain
collection DOAJ
description Proper plant leaf disease (PLD) detection is challenging in complex backgrounds and under different capture conditions. For this reason, initially, modified adaptive centroid-based segmentation (ACS) is used to trace the proper region of interest (ROI). Automatic initialization of the number of clusters (K) using modified ACS before recognition increases tracing ROI’s scalability even for symmetrical features in various plants. Besides, convolutional neural network (CNN)-based PLD recognition models achieve adequate accuracy to some extent. However, memory requirements (large-scaled parameters) and the high computational cost of CNN-based PLD models are burning issues for the memory restricted mobile and IoT-based devices. Therefore, after tracing ROIs, three proposed depth-wise separable convolutional PLD (DSCPLD) models, such as segmented modified DSCPLD (S-modified MobileNet), segmented reduced DSCPLD (S-reduced MobileNet), and segmented extended DSCPLD (S-extended MobileNet), are utilized to represent the constructive trade-off among accuracy, model size, and computational latency. Moreover, we have compared our proposed DSCPLD recognition models with state-of-the-art models, such as MobileNet, VGG16, VGG19, and AlexNet. Among segmented-based DSCPLD models, S-modified MobileNet achieves the best accuracy of 99.55% and F1-sore of 97.07%. Besides, we have simulated our DSCPLD models using both full plant leaf images and segmented plant leaf images and conclude that, after using modified ACS, all models increase their accuracy and F1-score. Furthermore, a new plant leaf dataset containing 6580 images of eight plants was used to experiment with several depth-wise separable convolution models.
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spelling doaj.art-9445b789d481439ea14cc458b4fa7b942023-11-21T11:22:27ZengMDPI AGSymmetry2073-89942021-03-0113351110.3390/sym13030511Plant Leaf Disease Recognition Using Depth-Wise Separable Convolution-Based ModelsSyed Mohammad Minhaz Hossain0Kaushik Deb1Pranab Kumar Dhar2Takeshi Koshiba3Department of Computer Science & Engineering, Chittagong University of Engineering & Technology (CUET), Chattogram 4349, BangladeshDepartment of Computer Science & Engineering, Chittagong University of Engineering & Technology (CUET), Chattogram 4349, BangladeshDepartment of Computer Science & Engineering, Chittagong University of Engineering & Technology (CUET), Chattogram 4349, BangladeshFaculty of Education and Integrated Arts and Sciences, Waseda University, 1-6-1 Nishiwaseda, Shinjuku-ku, Tokyo 169-8050, JapanProper plant leaf disease (PLD) detection is challenging in complex backgrounds and under different capture conditions. For this reason, initially, modified adaptive centroid-based segmentation (ACS) is used to trace the proper region of interest (ROI). Automatic initialization of the number of clusters (K) using modified ACS before recognition increases tracing ROI’s scalability even for symmetrical features in various plants. Besides, convolutional neural network (CNN)-based PLD recognition models achieve adequate accuracy to some extent. However, memory requirements (large-scaled parameters) and the high computational cost of CNN-based PLD models are burning issues for the memory restricted mobile and IoT-based devices. Therefore, after tracing ROIs, three proposed depth-wise separable convolutional PLD (DSCPLD) models, such as segmented modified DSCPLD (S-modified MobileNet), segmented reduced DSCPLD (S-reduced MobileNet), and segmented extended DSCPLD (S-extended MobileNet), are utilized to represent the constructive trade-off among accuracy, model size, and computational latency. Moreover, we have compared our proposed DSCPLD recognition models with state-of-the-art models, such as MobileNet, VGG16, VGG19, and AlexNet. Among segmented-based DSCPLD models, S-modified MobileNet achieves the best accuracy of 99.55% and F1-sore of 97.07%. Besides, we have simulated our DSCPLD models using both full plant leaf images and segmented plant leaf images and conclude that, after using modified ACS, all models increase their accuracy and F1-score. Furthermore, a new plant leaf dataset containing 6580 images of eight plants was used to experiment with several depth-wise separable convolution models.https://www.mdpi.com/2073-8994/13/3/511plant leaf diseasedepth-wise separable convolutionmodified adaptive centroid-based segmentationcomputational latencymodel size
spellingShingle Syed Mohammad Minhaz Hossain
Kaushik Deb
Pranab Kumar Dhar
Takeshi Koshiba
Plant Leaf Disease Recognition Using Depth-Wise Separable Convolution-Based Models
Symmetry
plant leaf disease
depth-wise separable convolution
modified adaptive centroid-based segmentation
computational latency
model size
title Plant Leaf Disease Recognition Using Depth-Wise Separable Convolution-Based Models
title_full Plant Leaf Disease Recognition Using Depth-Wise Separable Convolution-Based Models
title_fullStr Plant Leaf Disease Recognition Using Depth-Wise Separable Convolution-Based Models
title_full_unstemmed Plant Leaf Disease Recognition Using Depth-Wise Separable Convolution-Based Models
title_short Plant Leaf Disease Recognition Using Depth-Wise Separable Convolution-Based Models
title_sort plant leaf disease recognition using depth wise separable convolution based models
topic plant leaf disease
depth-wise separable convolution
modified adaptive centroid-based segmentation
computational latency
model size
url https://www.mdpi.com/2073-8994/13/3/511
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AT kaushikdeb plantleafdiseaserecognitionusingdepthwiseseparableconvolutionbasedmodels
AT pranabkumardhar plantleafdiseaserecognitionusingdepthwiseseparableconvolutionbasedmodels
AT takeshikoshiba plantleafdiseaserecognitionusingdepthwiseseparableconvolutionbasedmodels