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Proceedings Paper

A technique to remove image artefacts in optical systems with wavefront coding
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Paper Abstract

Based on an analytical analysis of the optical transfer function in an optical system with wavefront coding, specifically with a cubic phase mask in the aperture stop, we explain that such systems have image artefacts in the restored images and that these are manifested as replication artefacts. To remove image artefacts we propose to store a set of defocused point spread functions such that a single defocused image can be restored to a set of images, wherein one of them is without image artefacts. The image without image artefacts is determined with a new metric which we define in the wavelet domain.

Paper Details

Date Published: 21 August 2009
PDF: 12 pages
Proc. SPIE 7429, Novel Optical Systems Design and Optimization XII, 74290N (21 August 2009); doi: 10.1117/12.825923
Show Author Affiliations
Mads Demenikov, Heriot-Watt Univ. (United Kingdom)
Andrew R. Harvey, Heriot-Watt Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 7429:
Novel Optical Systems Design and Optimization XII
R. John Koshel; G. Groot Gregory, Editor(s)

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