Low-complexity pixel detection for images with misalignment and interpixel interference in holographic data storage
Applied Optics, Vol. 47, Issue 36, pp. 6784-6795 (2008)
http://dx.doi.org/10.1364/AO.47.006784
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Abstract
This paper presents an efficient solution to recovering data pixels of images that have undergone optical and electrical channel impairments in holographic data storage systems. The channel impairments considered include interpixel interference, three types of misalignment, and noise. The proposed misalignment-compensation scheme, consisting of realignment and rate conversion, can effectively eliminate misalignment with more than 84% reduction in additions and 74% reduction in multiplications. In addition, several low-complexity techniques are introduced to reduce the complexity of a two-dimensional maximum a posteriori pixel detection method by up to 95% and do so with negligible degradation in detection performance.
© 2008 Optical Society of America
OCIS Codes
(100.0100) Image processing : Image processing
(100.3010) Image processing : Image reconstruction techniques
(100.3020) Image processing : Image reconstruction-restoration
(200.3050) Optics in computing : Information processing
(200.4960) Optics in computing : Parallel processing
(210.2860) Optical data storage : Holographic and volume memories
ToC Category:
Imaging Systems
History
Original Manuscript: June 30, 2008
Revised Manuscript: November 1, 2008
Manuscript Accepted: November 6, 2008
Published: December 12, 2008
Citation
Chi-Yun Chen, Chih-Cheng Fu, and Tzi-Dar Chiueh, "Low-complexity pixel detection for images with misalignment and interpixel interference in holographic data storage," Appl. Opt. 47, 6784-6795 (2008)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-47-36-6784
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