NDLI: Variational PCA fusion for Pan-sharpening very high resolution imagery

Content Provider	Springer Nature Link
Author	Zhou, ZeMing Ma, Ning Li, YuanXiang Yang, PingLü Zhang, Peng Li, YunYing
Copyright Year	2014
Abstract	The Pan-sharpening approach based on principle component analysis (PCA) is affected by severe spectral distortion. To address this problem, a new pan-sharpening model based on PCA and variational technique is proposed to construct the substitute image of the first principal component (PC1). The energy functional consists of three terms. The first term injects PC1 with the geometric structure of the panchromatic (Pan) image. The second term preserves the spectral pattern of the multi-spectral image in the merged result. And the third term guarantees the smoothness of the functional optimization solution. The fusion result is given by the minimum of the energy functional, which is computed with the gradient descend flow. The experiments on QuickBird and IKONOS datasets validate the effectiveness of the proposed model. Compared with the state-of-the-art pan-sharpening approaches, this model exhibits a better trade-off between improving spatial quality and preserving spectral signature of the MS image.
Starting Page	1
Ending Page	10
Page Count	10
File Format	PDF
ISSN	1674733X
Journal	Science in China Series : Information Sciences
Volume Number	57
Issue Number	11
e-ISSN	18691919
Language	English
Publisher	Science China Press
Publisher Date	2014-09-05
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	PCA variational PCA fusion remote sensing image pan-sharpening gradient descend flow Information Systems and Communication Service
Content Type	Text
Resource Type	Article
Subject	Computer Science

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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