Deep learning for classification and severity estimation of coffee leaf biotic stress

被引:180
作者
Esgario, Jose G. M. [1 ,2 ]
Krohling, Renato A. [1 ,2 ,3 ]
Ventura, Jose A. [4 ]
机构
[1] Univ Fed Espirito Santo, Vitoria, ES, Brazil
[2] PPGI Grad Program Comp Sci, Vitoria, ES, Brazil
[3] Prod Engn Dept, Vitoria, ES, Brazil
[4] Incaper, Rua Afonso Sarlo 160, BR-29052010 Vitoria, ES, Brazil
关键词
PLANT-DISEASE DIAGNOSIS; RECOGNITION; IMPACT;
D O I
10.1016/j.compag.2019.105162
中图分类号
S [农业科学];
学科分类号
09 ;
摘要
Biotic stress consists of damage to plants through other living organisms. The efficient control of biotic agents such as pests and pathogens (viruses, fungi, bacteria, etc.) is closely related to the concept of agricultural sustainability. Agricultural sustainability promotes the development of new technologies that allow the reduction of environmental impacts, greater accessibility to farmers and, consequently, increased productivity. The use of computer vision with deep learning methods allows the early and correct identification of the stress-causing agent. So, corrective measures can be applied as soon as possible to mitigate the problem. The objective of this work is to design an effective and practical system capable of identifying and estimating the stress severity caused by biotic agents on coffee leaves. The proposed approach consists of a multi-task system based on convolutional neural networks. In addition, we have explored the use of data augmentation techniques to make the system more robust and accurate. Computational experiments performed with the proposed system using the ResNet50 architecture obtained an accuracy of 95.24% for the biotic stress classification and 86.51% for severity estimation. Moreover, it was found that by classifying only the symptoms, the results were greater than 97%. The experimental results indicate that the proposed system might be a suitable tool to assist both experts and farmers in the identification and quantification of biotic stresses in coffee plantations.
引用
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页数:9
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