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Proceedings Paper

Imaging quality analysis of phase-only holograms generated by point-based method with different edge-enhancement methods
Author(s): Siqing Chen; Zhen Zhang; Huadong Zheng; Tao Sun; Yingjie Yu; Hongyue Gao
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Paper Abstract

Phase-only hologram is the way to generate holograms generated by computers. Although the imaging quality is generally acceptable, the edge and line patterns of the reconstructed images are fuzzy. In this paper, we propose two methods which are the image preprocessing of the original images based on edge-preserve to improve the imaging quality. One is to use the Smallest Univalue Segment Assimilating Nucleus (SUSAN) for the extraction of original image edge, and the other one is to employee the Gaussian filter in frequency domain to separate high frequency and low frequency. Numerical reconstructions and optical reconstructions with a phase-only spatial light modulator (SLM) show that these methods can enhance the edge and line patterns of the reconstructed images, and the merits and drawbacks of the imaging quality using two methods are analyzed.

Paper Details

Date Published: 24 July 2018
PDF: 7 pages
Proc. SPIE 10827, Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018), 108270N (24 July 2018); doi: 10.1117/12.2500147
Show Author Affiliations
Siqing Chen, Shanghai Univ. (China)
Zhen Zhang, Shanghai Univ. (China)
Huadong Zheng, Shanghai Univ. (China)
Tao Sun, Shanghai Univ. (China)
Yingjie Yu, Shanghai Univ. (China)
Hongyue Gao, Shanghai Univ. (China)


Published in SPIE Proceedings Vol. 10827:
Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018)
Yingjie Yu; Chao Zuo; Kemao Qian, Editor(s)

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