BROWSE
Detail
Journal Article
Rapid Calculation of CGH Using the Multiplication of Down-scaled CGH with Shifted Concave Lens Array Function
- Authors
- Chang-Joo Lee, Seung-Yeol Lee
- Issue Date
- 2022-02
- Citation
- Current Optics and Photonics, v.6, no.1, pp.51-59
- ISSN
- 2508-7266
- Publisher
- Optical Society of Korea
- Language
- English
- Type
- Journal Article
- Abstract
- Holographic display technology is one of the promising 3D display technologies. However, the large amount of computation time required to generate computer-generated holograms (CGH) is a major obstacle to the commercialization of digital hologram. In various systems such as multi-depth head-up-displays with hologram contents, it is important to transmit hologram data in real time. In this paper, we propose a rapid CGH computation method by applying an arraying of a down-scaled hologram with the multiplication of a shifted concave lens function array. Compared to conventional angular spectrum method (ASM) calculation, we achieved about 39 times faster calculation speed for 3840 × 2160 pixel CGH calculation. Through the numerical investigation and experiments, we verified the degradation of reconstructed hologram image quality made by the proposed method is not so much compared to conventional ASM.
- KSP Keywords
- 3D display, Angular spectrum, Computation method, Computer generated holograms(CGH), Concave lens, Digital hologram, Display technology, Holographic display, Multi-depth, Numerical investigation, Real-time
This work is distributed under the term of Creative Commons License (CCL)
(CC BY NC)
(CC BY NC)
