Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/90606
Type: Artigo de evento
Title: Remote Phenology: Applying Machine Learning To Detect Phenological Patterns In A Cerrado Savanna
Author: Almeida J.
Dos Santos J.A.
Alberton B.
Torres R.D.S.
Morellato L.P.C.
Abstract: Plant phenology has gained importance in the context of global change research, stimulating the development of new technologies for phenological observation. Digital cameras have been successfully used as multi-channel imaging sensors, providing measures of leaf color change information (RGB channels), or leafing phenological changes in plants. We monitored leaf-changing patterns of a cerrado-savanna vegetation by taken daily digital images. We extract RGB channels from digital images and correlated with phenological changes. Our first goals were: (1) to test if the color change information is able to characterize the phenological pattern of a group of species; and (2) to test if individuals from the same functional group may be automatically identified using digital images. In this paper, we present a machine learning approach to detect phenological patterns in the digital images. Our preliminary results indicate that: (1) extreme hours (morning and afternoon) are the best for identifying plant species; and (2) different plant species present a different behavior with respect to the color change information. Based on those results, we suggest that individuals from the same functional group might be identified using digital images, and introduce a new tool to help phenology experts in the species identification and location on-the-ground. ©2012 IEEE.
Editor: 
Rights: fechado
Identifier DOI: 10.1109/eScience.2012.6404438
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-84873694426&partnerID=40&md5=6fce1c6b34bbf7cdf2b399d25af9d0ac
Date Issue: 2012
Appears in Collections:Unicamp - Artigos e Outros Documentos

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