Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/4628
Título: | Urban areas identification through clustering trials and the use of neural networks |
Autor(es): | Lourenço, Júlia Ramos, L. Ramos, Rui A. R. Santos, Henrique Dinis dos Fernandes, Delfim |
Palavras-chave: | Remote sensing Neural networks Maximum likelihood classification Supervised classification |
Data: | 2005 |
Citação: | EUROPEAN COLLOQUIUM ON THEORETICAL AND QUANTITATIVE GEOGRAPHY, 14, Tomar, 2005 - " European Colloquium on Theoretical and Quantitative Geography". [CD-ROM]. [S.l. : s.n., 2005]. |
Resumo(s): | The main objective of this paper is to assess how an urban area can be identified accurately using satellite images. The case study is the urban centre of Vila Real and the satellite image used is SPOT5. Results are still being worked out and some shortcomings of the process are known. A most important one is the lack of large data sets as only one satellite image is normally used. This problem is typical in urban studies due to the funding shortage. Important decisions are concerned with the number of classes and their homogeneity as well as the estimation of accuracy. Following the obtained results, it will be possible to choose the most efficient classification in terms of performance, accuracy and confidence level upon working method. Likewise, the monitoring process of urban areas expansion can be used more extensively. |
Tipo: | Artigo em ata de conferência |
URI: | https://hdl.handle.net/1822/4628 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CEC-PT - Comunicações a Conferências Internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Lourenco_CI_7_2005.pdf | Documento principal | 1,31 MB | Adobe PDF | Ver/Abrir |