Plant disease detection using deep learning

• Main Author: Cheng, Jung Yin
• Format: Final Year Project / Dissertation / Thesis
• Published: 2024
• Subjects: QA75 Electronic computers. Computer science; T Technology (General)
• Online Access: http://eprints.utar.edu.my/6553/1/MH_1902674_Final_CHENG_JUNG_YIN.pdf; http://eprints.utar.edu.my/6553/
• Institution: Universiti Tunku Abdul Rahman

The success of deep learning (DL) has greatly promoted the use of computer vision technology in smart agriculture. Many developments in this area are focusing on timely and accurate recognition of plant disease, with the goals of increasing crop productivity and fostering economic growth. This project aims to explore the potential of two popular DL architectures namely You Only Look Once (YOLO) and transformer for recognizing 70 distinct classes of plant leaf health conditions. Specifically, a total of six models namely Vision Transformer-B/16 (ViT-B/16), ViT-B/32, ViT-L/16, YOLOv8n-cls, YOLOv8s-cls and YOLOv8m-cls are implemented and compared. In the training stage where graphics processing unit (GPU) is utilized, ViT-B/32 yields the shortest training time, which is at least 80% faster than all YOLOv8-cls variants. However, when deploying these trained models on a central processing unit (CPU), YOLOv8 models consistently outperform ViT algorithms in terms of speed and accuracy. Experiment results indicate that YOLOv8n-cls attains the highest frames per second (FPS) of 31, whereas YOLOv8m-cls achieves a test accuracy of 97.7 %. Such findings suggest that YOLOv8 appears to be more promising for real-time object classification tasks.