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Sensors 2009, 9(3), 1370-1381; doi:10.3390/s90301370

Scaling-up Transformation of Multisensor Images with Multiple Resolutions

Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, 11A, Datun Road, Chaoyang District, Beijing 100101, P.R. China
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Received: 18 October 2008 / Revised: 27 December 2008 / Accepted: 11 February 2009 / Published: 26 February 2009
(This article belongs to the Section Remote Sensors)
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Abstract

For scaling up low resolution multispectral images (LRMIs) with high resolution panchromatic image (HRPI), intensity-hue-saturation (IHS) can produce satisfactory spatial enhancement but usually introduces spectral distortion in the fused high resolution multispectral images (HRMIs). In this paper, to minimize this problem, we present a generalized intensity modulation (GIM) by extending the IHS transform to an arbitrary number of LRMIs, which uses the information of the spectral response functions (SRFs) of the multispectral and panchromatic sensors. Before modulation, the generalized intensity is enhanced by injecting details extracted from the HRPI by means of empirical mode decomposition. After the enhanced generalized intensity is substituted for the old one, the HRMIs are obtained through the GIM. Quickbird images are used to illustrate the superiority of this proposed method. Extensive comparison results based on visual analysis and Wald’s protocol demonstrate that the proposed method is more encouraging for scaling up the LRMIs with the HRPI spectrally and spatially than the tested fusion methods. View Full-Text
Keywords: Intensity Hue Saturation; Generalized Intensity Modulation; Spectral Response Function; Empirical Mode Decomposition; Scaling-up Transformation Intensity Hue Saturation; Generalized Intensity Modulation; Spectral Response Function; Empirical Mode Decomposition; Scaling-up Transformation
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Chen, S.; Zhang, R.; Su, H.; Tian, J.; Xia, J. Scaling-up Transformation of Multisensor Images with Multiple Resolutions. Sensors 2009, 9, 1370-1381.

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