Comparison of depth-of-focus-enhancing pupil masks based on a signal-to-noise-ratio criterion after deconvolution

We consider optimization of hybrid imaging systems including a pupil mask for enhancing the depth of field and a digital deconvolution step. In a previous paper [Opt. Lett. 34, 2970 (2009)] we proposed an optimization criterion based on the signal-to-noise ratio of the restored image. We use this cr...

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Published inJournal of the Optical Society of America. A, Optics, image science, and vision Vol. 27; no. 10; p. 2123
Main Authors Diaz, Frédéric, Goudail, François, Loiseaux, Brigitte, Huignard, Jean-Pierre
Format Journal Article
LanguageEnglish
Published United States 01.10.2010
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Summary:We consider optimization of hybrid imaging systems including a pupil mask for enhancing the depth of field and a digital deconvolution step. In a previous paper [Opt. Lett. 34, 2970 (2009)] we proposed an optimization criterion based on the signal-to-noise ratio of the restored image. We use this criterion in order to optimize different families of phase or amplitude masks and to compare them, on an objective basis, for different desired defocus ranges. We show that increasing the number of parameters of the masks allows one to obtain better performance.
ISSN:1520-8532
DOI:10.1364/josaa.27.002123