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Extending depth of field for hybrid imaging systems via the use of both dark and dot point spread functions

Nhu, L.V. and Fan, Z. and Chen, S. and Dang, F. (2016) Extending depth of field for hybrid imaging systems via the use of both dark and dot point spread functions. Applied Optics, 55 (26). pp. 7345-7350. ISSN 1559128X

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Abstract

In this paper, we propose one method based on the use of both dark and dot point spread functions (PSFs) to extend depth of field in hybrid imaging systems. Two different phase modulations of two phase masks are used to generate both dark and dot PSFs. The quartic phase mask (QPM) is used to generate the dot PSF. A combined phase mask between the QPM and the angle for generating the dark PSF is investigated. The simulation images show that the proposed method can produce superior imaging performance of hybrid imaging systems in extending the depth of field. © 2016 Optical Society of America.

Item Type: Article
Divisions: Faculties > Faculty of Special Equipments
Identification Number: 10.1364/AO.55.007345
Uncontrolled Keywords: Imaging systems; Optical design; Phase modulation; Depth of field; Hybrid imaging systems; Imaging performance; Phase masks; Simulation images; Two phase; Optical transfer function
Additional Information: Language of original document: English.
URI: http://eprints.lqdtu.edu.vn/id/eprint/9805

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