@InProceedings{CohencaCarv:2015:CoMéCl,
author = "Cohenca, Daniel and Carvalho, Raquel",
title = "Compara{\c{c}}{\~a}o de m{\'e}todos de
classifica{\c{c}}{\~a}o OBIA, M{\'a}xima Verossimilhan{\c{c}}a
e Dist{\^a}ncia M{\'{\i}}nima em imagem OLI/Landsat-8 em
{\'a}rea de alta diversidade de uso do solo",
booktitle = "Anais...",
year = "2015",
editor = "Gherardi, Douglas Francisco Marcolino and Arag{\~a}o, Luiz
Eduardo Oliveira e Cruz de",
pages = "1035--1042",
organization = "Simp{\'o}sio Brasileiro de Sensoriamento Remoto, 17. (SBSR)",
publisher = "Instituto Nacional de Pesquisas Espaciais (INPE)",
address = "S{\~a}o Jos{\'e} dos Campos",
abstract = "The great demand for reliable thematic maps requires testing
different methods of classification to determine the most
appropriate considering land use diversity, research objectives,
satellite images available and time invested. To identify the most
appropriate classification method for an OLI/Landsat-8 satellite
image covering a coastal region in Santa Catarina state, Brazil,
three methods were tested for their accuracy: Maximum Likelihood
and Minimum Distance, pixel based supervised classifications, and
Object Based Image Analysis (OBIA) based on image segmentation
into regions and separation of classes based on geometric,
textural and spectral values. The accuracy assessment for each
classification method was based in a stratified random independent
sampling to build an error matrix for the global and conditional
(per class) Kappa coefficients calculation. In agreement with our
results, the maximum likelihood and OBIA classifiers had a better
performance in comparison to Minimum Distance method. By other
hand, the poorest performance of the Minimum Distance method
suggests that the use of spectral mean value only to classify
single pixels is not appropriate to the classification process.
Although differences of Global Kappa coefficients between OBIA and
MaxVer methods were not significant, the assessment of conditional
Kappa coefficients for each class evidenced significant
differences. Structural differences between these two methods are
discussed regarding the achieved results and also on the
considerations around time-consuming efforts of an interpreter in
the case of OBIA.",
conference-location = "Jo{\~a}o Pessoa",
conference-year = "25-29 abr. 2015",
isbn = "978-85-17-0076-8",
label = "193",
language = "pt",
organisation = "Instituto Nacional de Pesquisas Espaciais (INPE)",
ibi = "8JMKD3MGP6W34M/3JM47M5",
url = "http://urlib.net/ibi/8JMKD3MGP6W34M/3JM47M5",
targetfile = "p0193.pdf",
type = "Classifica{\c{c}}{\~a}o e minera{\c{c}}{\~a}o de dados",
urlaccessdate = "15 jun. 2024"
}