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Journal of Electronic Imaging

Multiscale image fusion using an adaptive similarity-based sensor weighting scheme and human visual system-inspired contrast measure
Author(s): Shahan C. Nercessian; Karen A. Panetta; Sos S. Agaian
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Paper Abstract

The goal of image fusion is to combine multiple source images obtained using different capture techniques into a single image to provide an effective contextual enhancement of a scene for human or machine perception. In practice, considerable value can be gained in the fusion of images that are dissimilar or complementary in nature. However, in such cases, global weighting schemes may not sufficiently weigh the contribution of the pertinent information of the source images, while existing adaptive schemes calculate weights based on the relative amounts of salient features, which can cause severe artifacting or inadequate local luminance in the fusion result. Accordingly, a new multiscale image fusion algorithm is proposed. The approximation coefficient fusion rule of the algorithm is based on a novel similarity based weighting scheme capable of providing improved fusion results when the input source images are either similar or dissimilar to each other. Moreover, the algorithm employs a new detail coefficient fusion rule integrating a parametric multiscale contrast measure. The parametric nature of the contrast measure allows the degree to which psychophysical laws of human vision hold to be tuned based on image-dependent characteristics. Experimental results illustrate the superior performance of the proposed algorithm qualitatively and quantitatively.

Paper Details

Date Published: 10 May 2012
PDF: 14 pages
J. Electron. Imaging. 21(2) 021112 doi: 10.1117/1.JEI.21.2.021112
Published in: Journal of Electronic Imaging Volume 21, Issue 2
Show Author Affiliations
Shahan C. Nercessian, Tufts Univ. (United States)
Karen A. Panetta, Tufts Univ. (United States)
Sos S. Agaian, The Univ. of Texas at San Antonio (United States)


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