fMaize: A seamless image filtering and deep transfer EfficientNet-b0 model for sub-classifying fungi species infecting Zea mays leaves

College

Gokongwei College of Engineering

Document Type

Article

Source Title

Journal of Advanced Computational Intelligence and Intelligent Informatics

Volume

26

Issue

6

First Page

914

Last Page

921

Publication Date

11-2022

Abstract

Identification of fungi infecting Zea mays leaves and sub-classifying them to have correct course management in the earlier stages is lucrative. To develop a nondestructive and low-cost classification model of corn leaves infected by Setosphaeria turcica (ST), Cercospora zeae-maydis (CZM), and Puccinia sorghi (PS) fungi using image filtering and transfer learning model. Corn leaf images were categorized based on fungal-infection and stored in an image library. All images were then processed to show different intensities and then utilized to filter the images. An original RGB-based CNN model has been compared with selected pre-trained models of VGG16 and EfficientNet-b0 with inputs of both unfiltered and filtered RGB images. Results showed that the EfficientNet-b0 with filtered images model (fMaize) exhibited the highest accuracy of 97.63%, sensitivity of 97.99%, specificity of 97.38, quality index of 97.68%, and F-score of 96.48%. Consequently, the experimental results revealed that deep transfer learning models fed with filtered images produced higher accuracy than models that simply employed RGB images. Thus, transfer learning was proven to be a valuable tool in enhancing CNN image classification accuracy.

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Digitial Object Identifier (DOI)

10.20965/jaciii.2022.p0914

Disciplines

Bioresource and Agricultural Engineering

Keywords

Corn—Diseases and pests—Identification; Fungal diseases of plants; Transfer learning (Machine learning); Nondestructive testing

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