Improving the reconstruction quality with extension and apodization of the digital hologram

Journal Article · Mon Jun 01 04:00:00 EDT 2009 · Applied Optics

DOI:https://doi.org/10.1364/AO.48.003070· OSTI ID:22036375

Yancao, Zhang; Jianlin, Zhao; Qi, Fan; Wei, Zhang; Sheng, Yang

To suppress the aperture diffraction and spectral leakage effects in the reconstruction process of the digital hologram and to maintain the original information recorded in the hologram, a novel reconstruction method based on extension and apodization of the digital hologram is presented, by which the original hologram can be extended by filling the average intensity values of the boundary, and the extended hologram is apodized by use of the constructed window function. As a sample, the digital hologram of the static particle field is recorded and numerically extended and then apodized with the appointed window. Finally, an unabridged and clear digital holographic image is reconstructed from the extended and apodized hologram. The experimental results confirm that this method cannot only eliminate the black-and-white diffraction fringes in the reconstructed image, but also attain the unabridged image with high quality.

• OSTI ID: 22036375
• Journal Information: Applied Optics, Journal Name: Applied Optics Journal Issue: 16 Vol. 48; ISSN 0003-6935; ISSN APOPAI
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
APERTURES
CHARGE-COUPLED DEVICES
DESIGN
DIFFRACTION
DIGITAL SYSTEMS
HOLOGRAPHY
IMAGE PROCESSING
IMAGES
INTERFEROMETRY
MODULATION
OPTICAL SYSTEMS
OSCILLATION MODES
PHOTODETECTORS