Observatorio de I+D+i UPM

Memorias de investigación
Artículos en revistas:
Quality assessment by region in spot images fused by means dual-tree complex wavelet transform
Año:2011
Áreas de investigación
  • Teledetección,
  • Procesamiento de imágenes
Datos
Descripción
This work is motivated in providing and evaluating a fusion algorithm of remotely sensed images, i.e. the fusion of a high spatial resolution panchromatic image with a multi-spectral image (also known as pansharpening) using the dual-tree complex wavelet transform (DT-CWT), an effective approach for conducting an analytic and oversampled wavelet transform to reduce aliasing, and in turn reduce shift dependence of the wavelet transform. The proposed scheme includes the definition of a model to establish how information will be extracted from the PAN band and how that information will be injected into the MS bands with low spatial resolution. The approach was applied to Spot 5 images where there are bands falling outside PAN?s spectrum. We propose an optional step in the quality evaluation protocol, which is to study the quality of the merger by regions, where each region represents a specific feature of the image. The results show that DT-CWT based approach offers good spatial quality while retaining the spectral information of original images, case SPOT 5. The additional step facilitates the identification of the most affected regions by the fusion process.
Internacional
Si
JCR del ISI
Si
Título de la revista
Advances in Space Research
ISSN
0273-1177
Factor de impacto JCR
1,178
Información de impacto
Datos JCR del año 2010
Volumen
48
DOI
Número de revista
Desde la página
1377
Hasta la página
1391
Mes
JULIO
Ranking
Q3
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Diego Renza Torres (UPM)
  • Autor: M.Estibaliz Martinez Izquierdo (UPM)
  • Autor: Agueda Arquero Hidalgo (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Informática Aplicada al Procesado de Señal e Imagen
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