Extended DoF and achromatic inverse imaging for lens and lensless MPM camera based on Wiener filtering of defocused OTFs
| Autor: | Seyyed Reza Miri Rostami, Karen Egiazarian, Vladimir Katkovnik |
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| Přispěvatelé: | Tampere University, Computing Sciences |
| Rok vydání: | 2021 |
| Předmět: |
Optical engineering
Physics::Optics 02 engineering and technology 01 natural sciences law.invention 010309 optics symbols.namesake 020210 optoelectronics & photonics Optics law Optical transfer function 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Depth of field Optical filter Physics business.industry 213 Electronic automation and communications engineering electronics Wiener filter General Engineering Atomic and Molecular Physics and Optics Lens (optics) Achromatic lens Computer Science::Computer Vision and Pattern Recognition symbols RGB color model business |
| Zdroj: | Optical Engineering. 60 |
| ISSN: | 0091-3286 |
| Popis: | Optimal optical transfer function (OTF) is proposed for RGB inverse imaging with extended depth of focus (DoF) and diminished color aberrations. This optimal OTF is derived as the Wiener filter of broadband defocused OTFs. The performance of this new inverse imaging is demonstrated for optical setups with lens and lensless with a multilevel phase mask (MPM) instead of the lens. The later lensless system designed for the wavelength range (400-700) nm and DoF range (0.5-1000) m demonstrates the best performance. publishedVersion |
| Databáze: | OpenAIRE |
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