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Image Super-Resolution Using Adaptive 2-D Gaussian Basis Function Interpolation
Paperback
Technology & EngineeringGeneral Computers
ISBN13: 9781288274307
Publisher: Biblioscholar
Published: Nov 9 2012
Pages: 60
Weight: 0.21
Height: 0.12 Width: 6.14 Depth: 9.21
Language: English
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.
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