Increase in depth of field taking into account deconvolution by optimization of pupil mask

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 t...

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Vydané v:Optics letters Ročník 34; číslo 19; s. 2970
Hlavní autori: Diaz, Frédéric, Goudail, François, Loiseaux, Brigitte, Huignard, Jean-Pierre
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: United States 01.10.2009
ISSN:1539-4794, 1539-4794
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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.
AbstractList 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.
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.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.
Author Loiseaux, Brigitte
Goudail, François
Diaz, Frédéric
Huignard, Jean-Pierre
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  givenname: François
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  givenname: Jean-Pierre
  surname: Huignard
  fullname: Huignard, Jean-Pierre
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Title Increase in depth of field taking into account deconvolution by optimization of pupil mask
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