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Remote Sens. 2015, 7(7), 9292-9310; doi:10.3390/rs70709292

Joint Quality Measure for Evaluation of Pansharpening Accuracy

Remote Sensing Technology Institute, German Aerospace Center (DLR), Oberpfaffenhofen, 82234 Wessling, Germany
Academic Editors: Giles Foody, Josef Kellndorfer and Prasad S. Thenkabail
Received: 17 April 2015 / Revised: 22 June 2015 / Accepted: 9 July 2015 / Published: 21 July 2015
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Abstract

A new Joint Quality Measure (JQM), which is a sole measure, is proposed for quality ranking of pansharpening methods. It is based on a newly proposed Composite similarity measure, which consists of Means, Standard deviations and Correlation coefficient (CMSC), and is translation invariant with respect to means and standard deviations. The JQM itself consists of a weighted sum of two terms. The first term is measured between a low pass filtered pansharpened image and original multispectral image at a reduced/low resolution scale. The second term is measured between the intensity calculated from spectrally weighted pansharpened multispectral image and original panchromatic image in a high resolution scale. Experimental results show advantages of a new measure, JQM, for quality assessment of pansharpening methods on the one hand, and drawbacks or unexpected properties of the already known measure, Quality with No Reference (QNR), on the other hand. View Full-Text
Keywords: image fusion; multi-resolution; low pass filtering; quality assessment; similarity measure image fusion; multi-resolution; low pass filtering; quality assessment; similarity measure
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Palubinskas, G. Joint Quality Measure for Evaluation of Pansharpening Accuracy. Remote Sens. 2015, 7, 9292-9310.

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