Full-scale assessment of pansharpening: why literature indexes may give contradictory results and how to avoid such an inconvenience
Luciano Alparone,
Andrea Garzelli,
Simone Lolli
et al.
Abstract:In this paper, we wish to explain the contradiction of quality assessments of pansharpening carried out at full and reduced spatial scales. It seems that at full scale, methods based on Component Substitution (CS) are quantitatively poorer than the other methods, but this depends on the intrinsic space varying misregistration between the two datasets. At reduced scale, the local shifts are divided by the MS-to-Pan scale ratio and thus they tend to vanish. The problem of full-scale quality indexes is that they … Show more
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