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Journal Article
Distortion Compensation of Reconstructed Hologram Image in Digital Holographic Display Based on Viewing Window
- Authors
- Minsik Park, Hyun-Eui Kim, Hyon-Gon Choo, Jinwoong Kim, Cheong Hee Park
- Issue Date
- 2017-08
- Citation
- ETRI Journal, v.39, no.4, pp.480-492
- ISSN
- 1225-6463
- Publisher
- 한국전자통신연구원 (ETRI)
- Language
- English
- Type
- Journal Article
- Abstract
- A holographic display based on a viewing window enables the converging of a reconstruction wave into a viewing window by means of an optical system. Accordingly, a user can observe a reconstructed hologram image, even with a small diffraction angle. It is very difficult to manufacture an optical system with no aberrations; thus, it is inevitable that a certain amount of wave aberrations will exist. A viewing-window-based holographic display, therefore, always includes distortions in an image reconstructed from a hologram pattern. Compensating the distortions of a reconstructed image is a very important technical issue because it can dramatically improve the performance when reconstructing a digital three-dimensional content image from a hologram pattern. We therefore propose a method for suppressing image distortion by measuring and compensating the wave aberration calculated from a Zernike polynomial, which can represent arbitrary wave aberrations. Through our experimental configuration using only numerical calculations, our proposed method decreased the reconstructed image distortion by more than 28%.
- KSP Keywords
- Holographic display, Image distortion, Numerical calculation, Optical System, Reconstructed image, Three dimensional(3D), Wave aberration, Zernike polynomial, distortion compensation, viewing window
This work is distributed under the term of Korea Open Government License (KOGL)
(Type 4: : Type 1 + Commercial Use Prohibition+Change Prohibition)
(Type 4: : Type 1 + Commercial Use Prohibition+Change Prohibition)
