Please use this identifier to cite or link to this item:
https://hdl.handle.net/2445/8564
Title: | Introduction of sensor spectral response into image fusion methods. Application to wavelet-based methods |
Author: | Otazu Porter, Xavier González-Audicana, María Fors Aldrich, Octavi Núñez de Murga, Jorge, 1955- |
Keywords: | Teledetecció Processament d'imatges Image processing Image sensors Remote sensing Sensor fusion Wavelet transforms |
Issue Date: | 2005 |
Publisher: | IEEE |
Abstract: | Usual image fusion methods inject features from a high spatial resolution panchromatic sensor into every low spatial resolution multispectral band trying to preserve spectral signatures and improve spatial resolution to that of the panchromatic sensor. The objective is to obtain the image that would be observed by a sensor with the same spectral response (i.e., spectral sensitivity and quantum efficiency) as the multispectral sensors and the spatial resolution of the panchromatic sensor. But in these methods, features from electromagnetic spectrum regions not covered by multispectral sensors are injected into them, and physical spectral responses of the sensors are not considered during this process. This produces some undesirable effects, such as resolution overinjection images and slightly modified spectral signatures in some features. The authors present a technique which takes into account the physical electromagnetic spectrum responses of sensors during the fusion process, which produces images closer to the image obtained by the ideal sensor than those obtained by usual wavelet-based image fusion methods. This technique is used to define a new wavelet-based image fusion method. |
Note: | Reproducció del document publicat a http://dx.doi.org/10.1109/TGRS.2005.856106 |
It is part of: | IEEE Transactions on Geoscience and Remote Sensing, 2005, vol. 43, núm. 10, p. 2376-2385. |
URI: | https://hdl.handle.net/2445/8564 |
Related resource: | http://dx.doi.org/10.1109/TGRS.2005.856106 |
ISSN: | 0196-2892 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) |
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