Influence of source images spatial characteristics on the global quality of fused images

Gonzalo Martín, Consuelo y Lillo Saavedra, Mario Fernando (2008). Influence of source images spatial characteristics on the global quality of fused images. "Revista de Teledetección" (n. 30); pp. 33-46. ISSN 1133-0953.

Descripción

Título: Influence of source images spatial characteristics on the global quality of fused images
Autor/es:
  • Gonzalo Martín, Consuelo
  • Lillo Saavedra, Mario Fernando
Tipo de Documento: Artículo
Título de Revista/Publicación: Revista de Teledetección
Fecha: Enero 2008
Materias:
Palabras Clave Informales: Images fusion, ERGAS Index, Multispectral Image, Wavelet à trous, Decomposition Level, Spatial Frequencies.
Escuela: Facultad de Informática (UPM) [antigua denominación]
Departamento: Arquitectura y Tecnología de Sistemas Informáticos
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

Texto completo

[img]
Vista Previa
PDF (Document Portable Format) - Se necesita un visor de ficheros PDF, como GSview, Xpdf o Adobe Acrobat Reader
Descargar (549kB) | Vista Previa

Resumen

techniques to perform remote sensed image fusion are based on multiresolution analysis. This kind of images analysis requires the decomposition of the image at differente scales or levels, depending the fusion results on this level. Then, the two main objectives of this work are: to investigate the influence of the source images spatial characteristics on the decomposition level that the process fusion should be performed in; and to show how depends the spatial-spectral quality of fused images on this decomposition level. To carry out this study, the image fusion methodology that has been applied is based on the Wavelet transform, calculated by the à trous algorithm. The quality of the fused images has been evaluated by the ERGAS indices, as well as, the spectral correlation, the spatial correlation (Zhou’s index) and a global index (Q4). This methodology has been applied to fuse several multispectral and panchromatic images registered by the corresponding sensors on board the Landsat, Ikonos, and Quickbird satellites. It has been demonstrated that, in the majority of the cases, a low number of decompositions provides fused images with a high spatial and spectral quality trade-off. Additionally, the results indicate that the decomposition level that provides the best spatial-spectral quality trade-off depends on the spatial frequencies content of the source images.

Más información

ID de Registro: 2318
Identificador DC: http://oa.upm.es/2318/
Identificador OAI: oai:oa.upm.es:2318
URL Oficial: http://www.aet.org.es/revistas/revista30/numero30_3.pdf
Depositado por: Memoria Investigacion
Depositado el: 19 May 2010 11:12
Ultima Modificación: 20 Abr 2016 12:03
  • Open Access
  • Open Access
  • Sherpa-Romeo
    Compruebe si la revista anglosajona en la que ha publicado un artículo permite también su publicación en abierto.
  • Dulcinea
    Compruebe si la revista española en la que ha publicado un artículo permite también su publicación en abierto.
  • Recolecta
  • e-ciencia
  • Observatorio I+D+i UPM
  • OpenCourseWare UPM