Thieu, H. and Le, V. and Bui, D. and Pham, M. and Le, V. and Pham, V. (2019) Radially Symmetric-Tangent Phase Mask to Obtain Invariant Imaging System to Defocus. In: 2019 International Conference on System Science and Engineering, ICSSE 2019, 20 July 2019 through 21 July 2019.
Radially Symmetric-Tangent Phase Mask to Obtain Invariant Imaging System to Defocus.pdf
Download (470kB) | Preview
Abstract
In this paper, we propose a radially symmetric tangent phase mask to obtain the modulation transfer functions nearly symmetric through the in-focus plane and more invariant over a wide range of defocus. Imaging performance of the proposed phase mask is compared with the quartic phase mask and conventional imaging system based on the use of the evaluation functions, such as the modulation transfer function, the point spread function and the simulation images. The results demonstrated that the proposed phase mask has superior imaging performance in extending the depth of field. © 2019 IEEE.
Item Type: | Conference or Workshop Item (Paper) |
---|---|
Divisions: | Faculties > Faculty of Radio-Electronic Engineering Faculties > Faculty of Special Equipments |
Identification Number: | 10.1109/ICSSE.2019.8823253 |
Uncontrolled Keywords: | Mammography; Modulation; Optical transfer function; Computational imaging; Conventional imaging; Depth of field; Evaluation function; Imaging performance; Phase masks; Radially symmetric; Simulation images; Imaging systems |
Additional Information: | Conference code: 151782. Language of original document: English. |
URI: | http://eprints.lqdtu.edu.vn/id/eprint/9295 |