Title :
A method for improving the consistency property of pansharpening algorithms
Author :
Vicinanza, M.R. ; Restaino, R. ; Vivone, G. ; Dalla Mura, Mauro ; Licciardi, G. ; Chanussot, J.
Author_Institution :
Dept. of Inf. Eng., Electr. Eng. & Appl. Math. (DIEM), Univ. of Salerno, Salerno, Italy
Abstract :
The design of a pansharpening algorithm for enriching a MultiSpectral image with the spatial details of a Panchromatic image should preserve the characteristics of the original dataset. A widely employed quality check consists in verifying the consistency of the fused product, namely the similarity of the original image and a reduced resolution version of the sharpened product. We propose to improve this feature by applying an Iterative Back-Projection algorithm after the fusion procedure. The approach is validated on two datasets, acquired by the Ikonos and WorldView-2 sensors, showing remarkable improvements, especially in conjunction with Component Substitution pansharpening methods.
Keywords :
geophysical image processing; geophysical techniques; image fusion; image resolution; iterative methods; remote sensing; Ikonos sensor; WorldView-2 sensor; component substitution pansharpening method; fused product; iterative back-projection algorithm; multispectral image; original dataset; original image similarity; panchromatic image; pansharpening algorithms; reduced resolution version; sharpened product; Algorithm design and analysis; Indexes; Multiresolution analysis; Protocols; Sensors; Spatial resolution; Component Substitution; Iterative Back-Projection; MultiResolution Analysis; Pansharpening;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2014 IEEE International
Conference_Location :
Quebec City, QC
DOI :
10.1109/IGARSS.2014.6946989
