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

被引：19
|
作者：
Lee, Sang-Hyuck [1 ]
Lim, Sung-Yong [2 ]
Kim, Nakyeong [2 ]
Park, No-Cheol [2 ]
Yang, Hyunseok [2 ]
Park, Kyoung-Su [2 ]
Park, Young-Pil [2 ]
机构：
[1] Yonsei Univ, Ctr Informat Storage Device, Seoul 120749, South Korea
[2] Yonsei Univ, Dept Mech Engn, Seoul 120749, South Korea
来源：
OPTICS EXPRESS | 2011年 / 19卷 / 13期
关键词：
D O I：
10.1364/OE.19.012053
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
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. (C) 2011 Optical Society of America
引用
收藏
页码：12053 / 12065
页数：13
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