Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Chinese Optics Letters
  • Vol. 9,
  • Issue 12,
  • pp. 120005-
  • (2011)

Enhanced method for the generation of binary Fresnel holograms based on grid-cross downsampling

Not Accessible

Your library or personal account may give you access

Abstract

Past research has demonstrated that digital Fresnel holograms can be binarized in a non-iterative manner by downsampling the source image with a grid lattice prior to the hologram generation process. The reconstructed image of a hologram that is binarized with this approach is superior in quality compared with that obtained with direct thresholding, half-toning, and error diffusion. Despite the success, the downsampling mechanism results in a prominent texture of regularly spaced voids in the shaded regions. To alleviate this problem, an enhanced non-iterative method for the generation of binary Fresnel holograms is presented. Our method is based on a multi-direction line-sampling formed by a combined grid and cross lattice, which is capable of preserving a more solid texture in the shaded regions and enhancing the visual quality of the reconstructed image. Computer simulations and optical reconstructions are shown to demonstrate the effectiveness of our proposed technique.

© 2011 Chinese Optics Letters

PDF Article
More Like This
Computer generation of binary Fresnel holography

Peter Tsang, T.-C. Poon, W.-K. Cheung, and J.-P. Liu
Appl. Opt. 50(7) B88-B95 (2011)

Enhanced direct binary search algorithm for binary computer-generated Fresnel holograms

Jung-Ping Liu, Chu-Qiao Yu, and Peter W. M. Tsang
Appl. Opt. 58(14) 3735-3741 (2019)

Generation of phase-only Fresnel hologram based on down-sampling

P.W.M. Tsang, Y.-T. Chow, and T. -C. Poon
Opt. Express 22(21) 25208-25214 (2014)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved