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Proceedings Paper

A JPEG-based enhanced compression algorithm of digital holograms
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Paper Abstract

We present a modified version of the general JPEG encoder for digital holograms. Since digital holograms are characterized by most of their information concentrated at first-order term, to compress digital holograms only with their first-order term is available. The proposed algorithm performs 2D-DCT (discrete cosine transform) on digital holograms as the general JPEG, then quantizes and encodes the low-frequency section extracted with an adaptive mask. Compatible with the general JPEG, the compressed holograms can be directly decoded by the general decoders. Our simulation and experimental results show that this algorithm has higher compression ratio than the general JPEG and more accurate retrieved phase while the compression is equal.

Paper Details

Date Published: 26 November 2012
PDF: 11 pages
Proc. SPIE 8556, Holography, Diffractive Optics, and Applications V, 85560K (26 November 2012); doi: 10.1117/12.999336
Show Author Affiliations
Hanming Yu, Jinan Univ. (China)
Zibang Zhang, Jinan Univ. (China)
Jingang Zhong, Jinan Univ. (China)

Published in SPIE Proceedings Vol. 8556:
Holography, Diffractive Optics, and Applications V
Yunlong Sheng; Chongxiu Yu; Linsen Chen, Editor(s)

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