Data/hora: 17/06/2024 10:57:07

Biblioteca(s): 	Biblioteca Rui Tendinha.	
Data corrente: 	18/02/2020	
Data da última atualização: 	18/02/2020	
Autoria: 	ESGARIO, J. G. M.; KROHLING, R. A.; VENTURA, J. A.	
Afiliação: 	José G. M. Esgario; Renato A. Krohling; Jose Aires Ventura, Incaper.	
Título: 	Deep learning for classification and severity estimation of coffee leaf biotic stress.	
Ano de publicação: 	2020	
Fonte/Imprenta: 	Computers and Electronics in Agriculture, v. 169, fev. 2020.	
DOI: 	https://doi.org/10.1016/j.compag.2019.105162	
Idioma: 	Inglês	
Conteúdo: 	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  for the biotic stress classification and  for severity estimation. Moreover, it was found that by classifying only the symptoms, the results were greater than . 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.	
Palavras-Chave: 	Biotic stress; Control of biotic; Convolutional neural networks.	
Categoria do assunto: 	--	
URL: 	https://biblioteca.incaper.es.gov.br/digital/bitstream/123456789/3972/1/Coffee-leaves-stress-ventura.pdf	
Registro original: 	Biblioteca Rui Tendinha (BRT)	
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