Amb motiu del tancament d'estiu, la validació de documents es reprendrà a partir del 28 d'agost de 2026. Disculpeu les molèsties.
Con motivo del cierre de verano, la validación de documentos se reanudará a partir del 28 de agosto de 2026. Disculpad las molestias
Due to the summer closure, document validation will resume starting August 28, 2026. We apologize for any inconvenience.

Files

500850.pdf (630.99 KB)

Document type

Article

Version

Published version

Publication date

1999

All rights reserved

Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/8545

Multiresolution-based image fusion with additive wavelet decomposition

Journal Title

Authors

Director/Tutor

Journal ISSN

Volume Title

Related resource

http://dx.doi.org/10.1109/36.763274

Abstract

The standard data fusion methods may not be satisfactory to merge a high-resolution panchromatic image and a low-resolution multispectral image because they can distort the spectral characteristics of the multispectral data. The authors developed a technique, based on multiresolution wavelet decomposition, for the merging and data fusion of such images. The method presented consists of adding the wavelet coefficients of the high-resolution image to the multispectral (low-resolution) data. They have studied several possibilities concluding that the method which produces the best results consists in adding the high order coefficients of the wavelet transform of the panchromatic image to the intensity component (defined as L=(R+G+B)/3) of the multispectral image. The method is, thus, an improvement on standard intensity-hue-saturation (IHS or LHS) mergers. They used the ¿a trous¿ algorithm which allows the use of a dyadic wavelet to merge nondyadic data in a simple and efficient scheme. They used the method to merge SPOT and LANDSATTM images. The technique presented is clearly better than the IHS and LHS mergers in preserving both spectral and spatial information.

Subject

Geofísica, Teledetecció, Processament d'imatges

Subject (English)

Geophysical signal processing, Geophysical techniques, Image processing, Image resolution, Multidimensional signal processing, Remote sensing, Sensor fusion, Terrain mapping, Wavelet transforms

Citation

Collections

Articles publicats en revistes (Física Quàntica i Astrofísica)

Citation

NÚÑEZ DE MURGA, Jorge, et al. Multiresolution-based image fusion with additive wavelet decomposition. IEEE Transactions on Geoscience and Remote Sensing. 1999. Vol. 37, num. 3 (Part 1), pags. 1204-1211. ISSN 0196-2892. [consulted: 18 of August of 2026]. Available at: https://hdl.handle.net/2445/8545

Export metadata

JSON - METS

Share record