Memorias de investigación
Artículos en revistas:
Caracterización multiescala de objetos como herramienta para la clasificación de imágenes de alta resolución espacial
Año:2012
Áreas de investigación
  • Teledetección
Datos
Descripción
This paper presents a new methodology, simple and affordable, for the definition and characterization of objects at different scales in high spatial resolution images. The objects have been generated by integrating texturally and spectrally homogeneous segments. The former have been obtained from the segmentation of Wavelet coefficients of the panchromatic image. The multi-scale character of this transform has yielded texturally homogeneous segments of different sizes for each of the scales. The spectrally homogeneous segments have been obtained by segmenting the classified corresponding multispectral image. In this way, it has been defined a set of objects characterized by different attributes, which give to the objects a semantic meaning, allowing to determine the similarities and differences between them. To demonstrate the capabilities of the methodology proposed, different experiments of unsupervised classification of a Quickbird image have been carried out, using different subsets of attributes and 1-D ascendant hierarchical classifier. Obtained results have shown the capability of the proposed methodology for separating semantic objects at different scales, as well as, its advantages against pixel-based image interpretation.
Internacional
No
JCR del ISI
No
Título de la revista
Revista de Teledetección : Revista de la Asociación Española de Teledetección
ISSN
1133-0953
Factor de impacto JCR
Información de impacto
Volumen
38
DOI
Número de revista
2
Desde la página
19
Hasta la página
27
Mes
DICIEMBRE
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Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Informática Aplicada al Procesado de Señal e Imagen