Special Section on Practical Holography: New Procedures, Materials, and Applications

Image-quality improvement in space-bandwidth capacity-enhanced digital holography

[+] Author Affiliations
Tatsuki Tahara

Kansai University, Faculty of Engineering Science, 3-3-35 Yamate-cho, Suita, Osaka 564-8680, Japan

Yuki Takahashi

Kansai University, Faculty of Engineering Science, 3-3-35 Yamate-cho, Suita, Osaka 564-8680, Japan

Yasuhiko Arai

Kansai University, Faculty of Engineering Science, 3-3-35 Yamate-cho, Suita, Osaka 564-8680, Japan

Opt. Eng. 53(11), 112313 (Jun 02, 2014). doi:10.1117/1.OE.53.11.112313
History: Received January 10, 2014; Revised April 15, 2014; Accepted May 2, 2014
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Abstract.  A method for improving the quality of the reconstructed image in space-bandwidth capacity-enhanced (SPACE) digital holography is proposed. SPACE digital holography is based on an off-axis configuration and is a technique for capturing an object wave with wide space-bandwidth product by introducing high spatial-carrier frequency, intentional aliasing, periodicity of a digital signal, and the optimal arrangements of the angle difference and object wave spectrum. In this paper, the severe spectrum attenuation caused by the integral of fine interference fringes in a pixel according to the sinc function is corrected by using spatial frequency analysis. Numerical and experimental results show the effectiveness of the proposed method.

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© 2014 Society of Photo-Optical Instrumentation Engineers

Citation

Tatsuki Tahara ; Yuki Takahashi and Yasuhiko Arai
"Image-quality improvement in space-bandwidth capacity-enhanced digital holography", Opt. Eng. 53(11), 112313 (Jun 02, 2014). ; http://dx.doi.org/10.1117/1.OE.53.11.112313


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