Pattern recognition in crops from the combination of classifiers and clusterers

• Grant number: 17/00357-7
• Support Opportunities: Regular Research Grants
• Start date: March 01, 2018
• End date: February 29, 2020
• Field of knowledge: Interdisciplinary Subjects
• Principal Investigator: Luiz Fernando Sommaggio Coletta
• Grantee: Luiz Fernando Sommaggio Coletta
• Host Institution: Faculdade de Ciências e Engenharia. Universidade Estadual Paulista (UNESP). Campus de Tupã. Tupã , SP, Brazil
• Associated researchers: Denis Fernando Wolf ; Flávio José de Oliveira Morais ; Rodrigo Lilla Manzione
• Associated scholarship(s): 18/09048-0 - Collecting visual data from UAVs for using in machine learning tools, BP.TT; 18/08731-8 - Detection of pests in plantations using semi-supervised learning, BP.TT

Abstract

Unmanned Aerial Vehicles (UAVs) are typically used in the mapping of agricultural areas due to their low cost and flexibility in data collection. Mapped areas help to detect diseases affecting planted areas, such as those for the sugarcane culture. From this perspective, the identification of several patterns in data collected by UAVs typically depends on the use of methods and algorithms based on Supervised Machine Learning. However, such methods and algorithms require significant amount of labeled data to induce accurate classification models with good generalization capability, which is rarely achieved in agricultural applications. Such a limitation makes room for the study and development of classifiers that, even induced from a small set of labeled data, are able to provide relevant results in pattern recognition. Our starting point will be the investigation of approaches for combining classifiers and clusterers, whose the underlying assumption is compensating the lack of labeled data with the information of clusters found on data. From these approaches, we will develop a method/algorithm to refine classification models fed by visual data captured by UAV in order to detect the Migdolus fryanus beetle larvae in sugarcane culture. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

COLETTA, LUIZ F. S.; DE ALMEIDA, DOUGLAS C.; SOUZA, JEFFERSON R.; MANZIONE, RODRIGO L.. Novelty detection in UAV images to identify emerging threats in eucalyptus crops. COMPUTERS AND ELECTRONICS IN AGRICULTURE, v. 196, p. 8-pg., 2022-05-01. (17/00357-7)

COLETTA, LUIZ F. S.; PONTI, MOACIR; HRUSCHKA, EDUARDO R.; ACHARYA, AYAN; GHOSH, JOYDEEP. Combining clustering and active learning for the detection and learning of new image classes. Neurocomputing, v. 358, p. 150-165, SEP 17 2019. (17/00357-7)