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Filtering of Digital Hologram

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Abstract:

With the development of computer technology and high-resolution charge coupled device (CCD), digital holography is widely used. However, there are noises in digital hologram inevitably, which is very unfavorable to reconstruct hologram and analysis fringes. From two aspects: frequency domain and space domain, we adopted mean filter, medium filter and Butterworth low-pass filter to remove the noise in digital hologram obtained with experiment. The experimental result showed that digital hologram was clearer and its contrast was enhanced. There was better reconstructing effect.

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Periodical:

Advanced Materials Research (Volume 710)

Pages:

763-767

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.710.763

Citation:

Cite this paper

Online since:

June 2013

Authors:

Fei Guo, Mai Yu Zhou, Mei Zhao, Xiu Yng Fan, Man Zhao

Keywords:

Butterworth Lowpass Filter, CCD, Digital Hologram, Mean Filter, Medium Filter

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Сopyright:

© 2013 Trans Tech Publications Ltd. All Rights Reserved

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