Skip to Main content Skip to Navigation
Journal articles

Performance limits of binary annular phase masks codesigned for depth-of-field extension

Rafael Falcón 1 François Goudail 1 Caroline Kulcsár 1 Hervé Sauer 1 
1 Laboratoire Charles Fabry / Spim
LCF - Laboratoire Charles Fabry
Abstract : We investigate the performance limits of hybrid imaging systems including annular binary phase masks optimized for depth-of-field (DoF) extension, as a function of the number of rings and the desired DoF range. The mask parameters are optimized taking into account deconvolution of the acquired raw image in the expression of the global performance of the imaging system. We prove that masks with a limited number of rings are sufficient to obtain near-optimal performance. Moreover, the best achievable image quality decreases as the required DoF range increases, so that for a given required image quality, the DoF extension reachable with binary phase masks is bounded. Finally, these conclusions are shown to be robust against different optical system aberrations and models of scene power spectral density. These results are important in practice to decide if annular binary phase masks are the relevant solution for a given imaging problem and for mask manufacturing, since the number and thickness of the rings reachable at affordable cost by technology are generally limited.
Complete list of metadata

Cited literature [16 references]  Display  Hide  Download

https://hal-iogs.archives-ouvertes.fr/hal-01682896
Contributor : Hervé Sauer Connect in order to contact the contributor
Submitted on : Thursday, February 1, 2018 - 6:48:43 PM
Last modification on : Saturday, June 25, 2022 - 10:28:39 PM
Long-term archiving on: : Wednesday, May 2, 2018 - 1:19:57 PM

File

RafaelFALCON_et_al_BinaryPhase...
Files produced by the author(s)

Identifiers

Citation

Rafael Falcón, François Goudail, Caroline Kulcsár, Hervé Sauer. Performance limits of binary annular phase masks codesigned for depth-of-field extension. Optical Engineering, SPIE, 2017, 56 (6), pp.065104. ⟨10.1117/1.OE.56.6.065104⟩. ⟨hal-01682896⟩

Share

Metrics

Record views

90

Files downloads

511