title: Increasing the storage density of a page-based holographic data storage system by image upscaling using the PSF of the Nyquist aperture.
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.
authors.affiliation: Center for Information Storage Device, Yonsei University, Shinchondong, Sudaemungu, Seoul 120-749, South Korea.
authors.forename: Sang-Hyuck
authors.initials: SH
authors.lastname: Lee
authors.forename: Sung-Yong
authors.initials: SY
authors.lastname: Lim
authors.forename: Nakyeong
authors.initials: N
authors.lastname: Kim
authors.forename: No-Cheol
authors.initials: NC
authors.lastname: Park
authors.forename: Hyunseok
authors.initials: H
authors.lastname: Yang
authors.forename: Kyoung-Su
authors.initials: KS
authors.lastname: Park
authors.forename: Young-Pil
authors.initials: YP
authors.lastname: Park
mesh_terms: D003198:Computer Simulation; D004867:Equipment Design; D006696:Holography / Q000295:instrumentation* / Q000379:methods*; D007091:Image Processing, Computer-Assisted / Q000295:instrumentation* / Q000379:methods*; D008962:Models, Theoretical