Color-image reconstruction for two-wavelength digital holography using a generalized phase-shifting approach

Takaaki Shiratori, Keisuke Kasai, Nobukazu Yoshikawa

研究成果: Article査読

6 被引用数 (Scopus)

抄録

We propose a color-image reconstruction method for two-wavelength digital holography using generalized phase-shifting digital holography (GPSDH). In this method, color interference fringes are captured by a digital camera with a Bayer array color filter, and phase shifting is simultaneously performed for all wavelengths. Color interference fringes are separated into three monochromatic interference fringes using a color-separation method that suppresses the color-filter crosstalk. The object wave is extracted from each monochromatic interference fringe using GPSDH, which prevents problems due to the phase shift wavelength dependence. Image reconstruction is performed using a shifted Fresnel transform-based method, in which the color reconstructed image is obtained by directly superposing the reconstructed images for all wavelengths. We verify the proposed method through optical experiments with a two-wavelength digital holography system. The results show that the dual-color image can be successfully reconstructed without chromatic aberration.

本文言語English
ページ(範囲)6554-6563
ページ数10
ジャーナルApplied optics
56
23
DOI
出版ステータスPublished - 2017 8 10

ASJC Scopus subject areas

  • 原子分子物理学および光学
  • 工学(その他)
  • 電子工学および電気工学

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