Increasing the storage density of a page-based holographic data storage system by image upscaling using the PSF of the Nyquist aperture

Sang Hyuck Lee, Sung Yong Lim, Nakyeong Kim, No Cheol Park, Hyun Seok Yang, Kyoung Su Park, Young Pil Park

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

We introduce an image upscaling method that reduces bit errors caused by Nyquist apertures. Nyquist apertures used for higher storage densities generate optical aberrations and degrade the quality of the image that is recorded on the medium. Here, to correct the bit errors caused by the Nyquist aperture, an image upscaling method is used to restore the degraded image in the enhanced spatial frequency domain using its point spread function (PSF) as a restoration filter. The proposed method reduces the bit error rate (BER) significantly and hence allows higher storage densities.

Original languageEnglish
Pages (from-to)12053-12065
Number of pages13
JournalOptics Express
Volume19
Issue number13
DOIs
Publication statusPublished - 2011 Jun 20

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All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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