Holography

Image reconstruction from compressed encrypted digital hologram

[+] Author Affiliations
Takanori Nomura

Wakayama University, Department of Opto-Mechatronics, 930 Sakaedani, Wakayama 640-8510, Japan

Atsushi Okazaki

Wakayama University, Graduate School of Systems Engineering, 930 Sakaedani, Wakayama 640-8510, Japan

Masashi Kameda

Iwate Prefectural University, Faculty of Software and Information Science, 152-52, Sugo, Takizawa, Iwate 020-0193, Japan

Yoshiharu Morimoto

Wakayama University, Department of Opto-Mechatronics, 930 Sakaedani, Wakayama 640-8510, Japan

Bahram Javidi

University of Connecticut, Electrical and Computer Engineering Department, 371 Fairfield Road, Unit 1157, Storrs, Connecticut 06269-1157

Opt. Eng. 44(7), 075801 (July 15, 2005). doi:10.1117/1.1951568
History: Received May 06, 2004; Revised November 19, 2004; Accepted February 02, 2005; Published July 15, 2005
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An encrypted digital holographic data reconstruction method with data compression is proposed. We show that the number of quantization levels of the digital hologram can be reduced. By computer simulations, we confirm that the method is especially useful for binary images. For gray-scale images, we propose a bit plane decomposition method. By this method, we show that both high reconstructed image quality and a high compression ratio can be achieved.

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© 2005 The Society of Photo-Optical Instrumentation Engineers

Citation

Takanori Nomura ; Atsushi Okazaki ; Masashi Kameda ; Yoshiharu Morimoto and Bahram Javidi
"Image reconstruction from compressed encrypted digital hologram", Opt. Eng. 44(7), 075801 (July 15, 2005). ; http://dx.doi.org/10.1117/1.1951568


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