Superresolution for a nonnegative band-limited image
- 1 August 1996
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 21 (15) , 1174-1176
- https://doi.org/10.1364/ol.21.001174
Abstract
A superresolution method is presented with a conjugate-gradient procedure under a nonnegativity constraint. The method is based on the property of a nonnegative object that its band-limited spectrum is the autoconvolution of a spectrum with a half-band limit, and the method is capable of doubling the band limit of an image. Computer simulations are conducted to investigate the performance of the present method.Keywords
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