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Proceedings Paper

Digital image interpolation using adaptive Gaussian basis functions
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Paper Abstract

Digital image interpolation using Gaussian radial basis functions has been implemented by several investigators, and promising results have been obtained; however, determining the basis function variance has been problematic. Here, adaptive Gaussian basis functions fit the mean vector and covariance matrix of a non-radial Gaussian function to each pixel and its neighbors, which enables edges and other image characteristics to be more effectively represented. The interpolation is constrained to reproduce the original image mean gray level, and the mean basis function variance is determined using the expected image smoothness for the increased resolution. Test outputs from the resulting Adaptive Gaussian Interpolation algorithm are presented and compared with classical interpolation techniques.

Paper Details

Date Published: 21 May 2004
PDF: 8 pages
Proc. SPIE 5299, Computational Imaging II, (21 May 2004); doi: 10.1117/12.555598
Show Author Affiliations
Terence D. Hunt, Air Force Institute of Technology (United States)
Steven C. Gustafson, Air Force Institute of Technology (United States)

Published in SPIE Proceedings Vol. 5299:
Computational Imaging II
Charles A. Bouman; Eric L. Miller, Editor(s)

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