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Proceedings Paper

Multispectral pansharpening based on pixel modulation: state of the art and new results
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Paper Abstract

In this paper, the characteristics of pansharpening methods based on pixel modulation are investigated. It is found that all the modulation-based fusion methods significantly benefit, both visually and numerically, from setting a constraint also on the modulus of the detail vector, by means of a damping factor. Experiments on VHR MS+Pan data sets from different instruments highlight that such factor is always lower than one and depends on the instrument as well as on the landscape. Instead of a trial-and-error optimization, the value of the damping factor can be determined by minimizing some measurement of spatial distortion of fusion products. Sample values are reported for IKONOS and QuickBird instruments and different types of land cover.

Paper Details

Date Published: 27 October 2011
PDF: 8 pages
Proc. SPIE 8180, Image and Signal Processing for Remote Sensing XVII, 818002 (27 October 2011); doi: 10.1117/12.898770
Show Author Affiliations
Bruno Aiazzi, Istituto di Fisica Applicata Nello Carrara, CNR (Italy)
Luciano Alparone, Univ. of Florence (Italy)
Stefano Baronti, Istituto di Fisica Applicata Nello Carrara, CNR (Italy)
Andrea Garzelli, Univ. of Siena (Italy)
Massimo Selva, Istituto di Fisica Applicata Nello Carrara, CNR (Italy)


Published in SPIE Proceedings Vol. 8180:
Image and Signal Processing for Remote Sensing XVII
Lorenzo Bruzzone, Editor(s)

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