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[An improved low spectral distortion PCA fusion method].

Authors :
Peng S
Zhang AW
Li HL
Hu SX
Meng XG
Sun WD
Source :
Guang pu xue yu guang pu fen xi = Guang pu [Guang Pu Xue Yu Guang Pu Fen Xi] 2013 Oct; Vol. 33 (10), pp. 2777-82.
Publication Year :
2013

Abstract

Aiming at the spectral distortion produced in PCA fusion process, the present paper proposes an improved low spectral distortion PCA fusion method. This method uses NCUT (normalized cut) image segmentation algorithm to make a complex hyperspectral remote sensing image into multiple sub-images for increasing the separability of samples, which can weaken the spectral distortions of traditional PCA fusion; Pixels similarity weighting matrix and masks were produced by using graph theory and clustering theory. These masks are used to cut the hyperspectral image and high-resolution image into some sub-region objects. All corresponding sub-region objects between the hyperspectral image and high-resolution image are fused by using PCA method, and all sub-regional integration results are spliced together to produce a new image. In the experiment, Hyperion hyperspectral data and Rapid Eye data were used. And the experiment result shows that the proposed method has the same ability to enhance spatial resolution and greater ability to improve spectral fidelity performance.

Details

Language :
Chinese
ISSN :
1000-0593
Volume :
33
Issue :
10
Database :
MEDLINE
Journal :
Guang pu xue yu guang pu fen xi = Guang pu
Publication Type :
Academic Journal
Accession number :
24409735