Resolution enhancement of low resolution wavefields with POCS algorithm
Date
2003Source Title
Electronics Letters
Print ISSN
0013-5194
Publisher
The Institution of Engineering and Technology
Volume
39
Issue
25
Pages
1808 - 1810
Language
English
Type
ArticleItem Usage Stats
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Abstract
The problem of enhancing the resolution of wavefield or beam profile measurements obtained using low resolution sensors is addressed by solving the problem of interpolating signals from partial fractional Fourier transform information in several domains. The iterative interpolation algorithm employed is based on the method of projections onto convex sets (POCS).
Keywords
Fractional Fourier transformFresnel approximation
Signal recovery
Algorithms
Approximation theory
Convergence of numerical methods
Extrapolation
Fourier transforms
Image quality
Image sensors
Interpolation
Iterative methods
Matrix algebra
Vectors
Image enhancement