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Proceedings Paper

Image quality improvement of digital holography by use of various rectangle apertures
Author(s): Takanori Nomura; Takahiko Fukuoka; Yutaka Mori
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Paper Abstract

Digital holography is a useful technique for recording the fully complex field of a wavefront. However, the quality of a reconstructed image of a digital hologram is not good, because it is suffering from speckles. To improve the image quality, a speckle reduction method in digital holography using various rectangular apertures is proposed. Different-sized rectangular apertures are applied for the hologram. Furthermore, the position of the aperture is arbitrary. Owing to the various size and position, the generated speckles have the various sizes and patterns. By averaging the speckle, the speckle noise can be reduced. Some reconstructed images based on the experimental results are shown to confirm the proposed method. For quantitative evaluation, the speckle contrast is also shown.

Paper Details

Date Published: 9 September 2015
PDF: 7 pages
Proc. SPIE 9598, Optics and Photonics for Information Processing IX, 95980B (9 September 2015); doi: 10.1117/12.2187749
Show Author Affiliations
Takanori Nomura, Wakayama Univ. (Japan)
Takahiko Fukuoka, Wakayama Univ. (Japan)
Yutaka Mori, Wakayama Univ. (Japan)


Published in SPIE Proceedings Vol. 9598:
Optics and Photonics for Information Processing IX
Abdul A. S. Awwal; Khan M. Iftekharuddin; Mohammad A. Matin; Mireya García Vázquez; Andrés Márquez, Editor(s)

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