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Image enhancement by nonlinear extrapolation in frequency space

Greenspan, Hayit and Anderson, Charles H. (1994) Image enhancement by nonlinear extrapolation in frequency space. In: Image and Video Processing II. No.2182. Society of Photo-Optical Instrumentation Engineers , San Jose, CA, pp. 2-13. ISBN 9780819414779.

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A procedure for creating images with higher resolution than the sampling rate would allow is described. The enhancement algorithm augments the frequency content of the image using shape-invariant properties of edges across scale by using a non-linearity that generates phase- coherent higher harmonics. The procedure utilizes the Laplacian pyramid image representation. Results are presented depicting the power-spectra augmentation and the visual enhancement of several images. Simplicity of computations and ease of implementation allow for real-time applications such as high-definition television.

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Additional Information:© 1994 Society of Photo-Optical Instrumentation Engineers (SPIE). C. H. Anderson was with the Jet Propulsion Laboratory, Pasadena CA, at the time of the research. This research was carried out by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration.
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Issue or Number:2182
Record Number:CaltechAUTHORS:20170912-101232813
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Official Citation:Hayit Greenspan, Charles H. Anderson, "Image enhancement by nonlinear extrapolation in frequency space", Proc. SPIE 2182, Image and Video Processing II, (1994/03/23); doi: 10.1117/12.171057;
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:81353
Deposited By: Ruth Sustaita
Deposited On:12 Sep 2017 18:20
Last Modified:03 Oct 2019 18:41

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