Full-Resolution Quality Assessment of Pansharpening: Theoretical and hands-on approaches
Alberto Arienzo, Gemine Vivone, Andrea Garzelli, Luciano Alparone, Jocelyn Chanussot
Abstract
<italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">Panchromatic</i> ( <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">Pan</i> ) <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">sharpening</i> , or <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">pansharpening</i> , refers to the combination of a multispectral (MS) image and Pan data with a finer spatial resolution. Since the early days of this research topic, the issue of quality assessment has played a central role in the related literature, pushing investigators toward extensive research. The solution to this problem is nontrivial because of its ill-posed nature. Indeed, no reference image is available to compare with the outcome of the fusion process.