Increase in depth of field taking into account deconvolution by optimization of pupil mask
Optics Letters, Vol. 34, Issue 19, pp. 2970-2972 (2009)
http://dx.doi.org/10.1364/OL.34.002970
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Abstract
We consider optimization of hybrid imaging systems including a phase mask for enhancing the depth of field and a digital deconvolution step. We propose an image quality criterion that takes into account the variability of the system’s point-spread function along the expected defocus range and the noise enhancement induced by deconvolution. Considering the classical cubic phase mask as an example, we show that the optimization of this criterion may lead to filter parameters that are significantly different from those usually proposed to ensure the strict invariance of the PSF.
© 2009 Optical Society of America
OCIS Codes
(100.1830) Image processing : Deconvolution
(110.4100) Imaging systems : Modulation transfer function
(110.4280) Imaging systems : Noise in imaging systems
(110.7348) Imaging systems : Wavefront encoding
ToC Category:
Imaging Systems
History
Original Manuscript: June 8, 2009
Revised Manuscript: August 12, 2009
Manuscript Accepted: August 24, 2009
Published: September 24, 2009
Citation
Frédéric Diaz, François Goudail, Brigitte Loiseaux, and Jean-Pierre Huignard, "Increase in depth of field taking into account deconvolution by optimization of pupil mask," Opt. Lett. 34, 2970-2972 (2009)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-34-19-2970
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