Digital image interpolation using adaptive Gaussian basis functions

Terence D. Hunt; Steven C. Gustafson

doi:10.1117/12.555598

21 May 2004 Digital image interpolation using adaptive Gaussian basis functions

Proceedings Volume 5299, Computational Imaging II; (2004) https://doi.org/10.1117/12.555598
Event: Electronic Imaging 2004, 2004, San Jose, California, United States

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.

Citation Download Citation

Terence D. Hunt and Steven C. Gustafson "Digital image interpolation using adaptive Gaussian basis functions", Proc. SPIE 5299, Computational Imaging II, (21 May 2004); https://doi.org/10.1117/12.555598

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available