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Proceedings Paper

Hologram image quality of binary modulating SLM-based holographic display (Conference Presentation)

Paper Abstract

We have successfully implemented and reported 360-degree viewable tabletop-style holographic display prototype systems. In order to support 360 degree horizontal viewing angle, which is very much wider than previous systems, we used binary amplitude modulating DMD device as SLM of the display system. DMD has higher total data rate due to its high refresh rate, which is denoted as extended SBP or eSBP, than other SLM devices like LCD or LCoS. This is much beneficial for the system design aiming at wider viewing angle or larger image size. However, Binary amplitude modulating hologram has inherent limitation in terms of resulting hologram image quality, and thus there has been lots of studies on quality-improving coding algorithms like BERD or DBS. In this paper, pros and cons of using DMD in holographic display system are discussed, and in-depth analysis and experimental results are presented on the behavior and limitations of the reconstructed image quality based on our prototype system. Image quality is measured with various metrics like 3D-MTF, depth resolution and color reproducing fidelity for different pixel resolutions from QVGA up to 4K UHD. 3D-MTF represents lateral image resolution and depth resolution has to do with degree of supporting accommodation of human vision in holographic displays. Based on these observations, we draw some projection on the required pixel resolutions of binary modulating SLM device for achieving acceptable hologram image quality.

Paper Details

Date Published: 14 May 2019
PDF
Proc. SPIE 10997, Three-Dimensional Imaging, Visualization, and Display 2019, 109970L (14 May 2019); doi: 10.1117/12.2520266
Show Author Affiliations
Jinwoong Kim, Electronics and Telecommunications Research Institute (Korea, Republic of)
Joongki Park, Electronics and Telecommunications Research Institute (Korea, Republic of)
Keehoon Hong, Electronics and Telecommunications Research Institute (Korea, Republic of)
Yongjun Lim, Electronics and Telecommunications Research Institute (Korea, Republic of)
Jeho Nam, Electronics and Telecommunications Research Institute (Korea, Republic of)


Published in SPIE Proceedings Vol. 10997:
Three-Dimensional Imaging, Visualization, and Display 2019
Bahram Javidi; Jung-Young Son; Osamu Matoba, Editor(s)

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