http://www.cnr.it/ontology/cnr/individuo/prodotto/ID192609

Influence of spatial resolution on pan-sharpening results (Contributo in atti di convegno)

Type

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Influence of spatial resolution on pan-sharpening results (Contributo in atti di convegno) (literal)

Anno

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Alternative label

L. Santurri, B. Aiazzi, S. Baronti, R. Carlà (2012)
Influence of spatial resolution on pan-sharpening results
in IEEE IGARSS 2012, 2012 IEEE International Geoscience and Remote Sensing Symposium, Monaco di Baviera, Germania, 22-27 Luglio 2012
(literal)

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National Research Council - Institute of Applied Physics \"N. Carrara\" (IFAC-CNR), Via Madonna del Piano 10, 50019 Sesto Fiorentino, Firenze, Italy National Research Council - Institute of Applied Physics \"N. Carrara\" (IFAC-CNR), Via Madonna del Piano 10, 50019 Sesto Fiorentino, Firenze, Italy National Research Council - Institute of Applied Physics \"N. Carrara\" (IFAC-CNR), Via Madonna del Piano 10, 50019 Sesto Fiorentino, Firenze, Italy National Research Council - Institute of Applied Physics \"N. Carrara\" (IFAC-CNR), Via Madonna del Piano 10, 50019 Sesto Fiorentino, Firenze, Italy (literal)

Titolo

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Abstract

Pan-sharpening techniques improve the spatial resolution of a Multispectral image (MS) by using a Panchromatic image (PAN) of the same scene contemporaneously acquired at higher resolution. Usually, a quantitative assessment of the resulting fused MS image cannot be directly performed because of the lack of a reference MS. Wald's protocol offers a possible solution: original Pan and MS are spatially degraded, the reducing factor being the ratio between their resolutions. Pan-sharpening is then performed between the reduced MS and PAN images. The quality of the fused products is then evaluated by comparing them with the original MS used as reference, by assuming the hypothesis that the performances of the pan-sharpening methods are independent from scale. The objective of this work is to propose a methodology to verify this hypothesis. For this aim, pan-sharpening performances when varying spatial resolution are investigated and a viable strategy to devise pansharpening performances at full scale is suggested. (literal)

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