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Proceedings Paper

Improving image quality of 360-degree viewable holographic display system by applying a speckle reduction technique and a spatial filtering
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Paper Abstract

Generally in electronic holographic display systems, coherent light sources are used to reconstruct holograms. The random distribution of phase profile of an object image causes unwanted dark and bright spots to degrade reconstructed hologram images. In addition, a periodic structure of available spatial light modulators such as liquid crystal on silicon devices and digital micro-mirror devices generates various diffractive signals when they are illuminated by coherent light sources. Consequently, it is necessary to select a proper signal band in spatial frequency domain by effectively filtering out unwanted signals. In this paper, the speckle pattern in a table-top holographic display system is measured and the method for reducing the speckle patterns is to be shown.

Paper Details

Date Published: 21 May 2018
PDF: 5 pages
Proc. SPIE 10676, Digital Optics for Immersive Displays, 106760Q (21 May 2018); doi: 10.1117/12.2315654
Show Author Affiliations
Yongjun Lim, Electronics and Telecommunications Research Institute (Korea, Republic of)
Keehoon Hong, Electronics and Telecommunications Research Institute (Korea, Republic of)
Hayan Kim, Electronics and Telecommunications Research Institute (Korea, Republic of)
Minsik Park, Electronics and Telecommunications Research Institute (Korea, Republic of)
Jinwoong Kim, Electronics and Telecommunications Research Institute (Korea, Republic of)


Published in SPIE Proceedings Vol. 10676:
Digital Optics for Immersive Displays
Bernard C. Kress; Wolfgang Osten; Hagen Stolle, Editor(s)

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