ETRI Journal

  • 제39권4호
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  • Pages.480-492
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  • 2017
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  • 1225-6463(pISSN)
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  • 2233-7326(eISSN)
한국전자통신연구원 (Electronics and Telecommunications Research Institute)
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Distortion Compensation of Reconstructed Hologram Image in Digital Holographic Display Based on Viewing Window

  • Park, Minsik (5G Giga Communication Research Laboratory, ETRI) ;
  • Kim, Hyun-Eui (5G Giga Communication Research Laboratory, ETRI) ;
  • Choo, Hyon-Gon (5G Giga Communication Research Laboratory, ETRI) ;
  • Kim, Jinwoong (5G Giga Communication Research Laboratory, ETRI) ;
  • Park, Cheong Hee (Department of Computer Science and Engineering, Chungnam National University)
  • 투고 : 2016.04.20
  • 심사 : 2017.05.08
  • 발행 : 2017.08.01
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초록

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%.

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참고문헌

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피인용 문헌

  1. Out-of-core GPU 2D-shift-FFT algorithm for ultra-high-resolution hologram generation vol.29, pp.12, 2017, https://doi.org/10.1364/oe.422266