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

Tatsuki Tahara; Yuki Takahashi; Yasuhiko Arai

doi:10.1117/1.OE.53.11.112313

2 June 2014 Image-quality improvement in space-bandwidth capacity-enhanced digital holography

Tatsuki Tahara, Yuki Takahashi, Yasuhiko Arai

Author Affiliations +

Optical Engineering, Vol. 53, Issue 11, 112313 (June 2014). https://doi.org/10.1117/1.OE.53.11.112313

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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Tatsuki Tahara, Yuki Takahashi, and Yasuhiko Arai "Image-quality improvement in space-bandwidth capacity-enhanced digital holography," Optical Engineering 53(11), 112313 (2 June 2014). https://doi.org/10.1117/1.OE.53.11.112313

Published: 2 June 2014

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