Wavelength-Selective Phase-Shifting Digital Holography: Color Three-Dimensional Imaging Ability in Relation to Bit Depth of Wavelength-Multiplexed Holograms

Applied Sciences

Tatsuki Tahara¹  Yasuhiro Takaki²  Reo Otani³ 

[1] Digital Content and Media Sciences Research Division, National Institute of Informatics, 2-1-2 Hitotsubashi, Chiyoda, Tokyo 101-8430, Japan;Institute of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan;SIGMAKOKI CO. LTD., 17-2, Shimotakahagi-shinden, Hidaka-shi, Saitama 350-1297, Japan;

关键词: three-dimensional imaging;    digital holography;    multiwavelength digital holography;    color holography;    phase-shifting interferometry;    phase-shifting digital holography;   

DOI  :  10.3390/app8122410

来源: DOAJ

【 摘 要 】

The quality of reconstructed images in relation to the bit depth of holograms formed by wavelength-selective phase-shifting digital holography was investigated. Wavelength-selective phase-shifting digital holography is a technique to obtain multiwavelength three-dimensional (3D) images with a full space-bandwidth product of an image sensor from wavelength-multiplexed phase-shifted holograms and has been proposed since 2013. The bit resolution required to obtain a multiwavelength holographic image was quantitatively and experimentally evaluated, and the relationship between wavelength resolution and dynamic range of an image sensor was numerically simulated. The results indicate that two-bit resolution per wavelength is required to conduct color 3D imaging.

【 授权许可】

Unknown