Journals and Proceedings ? Brought to you by The Optical Society

Applied Optics

Applied Optics

  • Vol. 48, Iss. 21 — Jul. 20, 2009
  • pp: 4246–4255

Optics InfoBase > Applied Optics > Volume 48 > Issue 21 > Page 4246

Computer generated hologram with geometric occlusion using GPU-accelerated depth buffer rasterization for three-dimensional display

Rick H.-Y. Chen and Timothy D. Wilkinson

Applied Optics, Vol. 48, Issue 21, pp. 4246-4255        doi:10.1364/AO.48.004246

» View Full Text: Acrobat PDF (782 KB)

  • OCIS Codes:
  • (090.1760) Holography : Computer holography
  • (090.2870) Holography : Holographic display
  • (100.6890) Image processing : Three-dimensional image processing
  • (090.5694) Holography : Real-time holography
ToC Category:
Holography

Citation
Rick H.-Y. Chen and Timothy D. Wilkinson, "Computer generated hologram with geometric occlusion using GPU-accelerated depth buffer rasterization for three-dimensional display," Appl. Opt. 48, 4246-4255 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-21-4246

Click for help

Abstract

We present a method of rapidly producing computer-generated holograms that exhibit geometric occlusion in the reconstructed image. Conceptually, a bundle of rays is shot from every hologram sample into the object volume. We use z buffering to find the nearest intersecting object point for every ray and add its complex field contribution to the corresponding hologram sample. Each hologram sample belongs to an independent operation, allowing us to exploit the parallel computing capability of modern programmable graphics processing units (GPUs). Unlike algorithms that use points or planar segments as the basis for constructing the hologram, our algorithm's complexity is dependent on fixed system parameters, such as the number of ray-casting operations, and can therefore handle complicated models more efficiently. The finite number of hologram pixels is, in effect, a windowing function, and from analyzing the Wigner distribution function of windowed free-space transfer function we find an upper limit on the cone angle of the ray bundle. Experimentally, we found that an angular sampling distance of 0.01° for a 2.66° cone angle produces acceptable reconstruction quality.

© 2009 Optical Society of America

» View Full Text: Acrobat PDF (782 KB)

History
Original Manuscript: March 30, 2009
Manuscript Accepted: June 24, 2009
Revised Manuscript: June 16, 2009
Published: July 17, 2009

References

Please [login to View References]

Author Affiliations

Rick H.-Y. Chen, Timothy D. Wilkinson

University of Cambridge

Cited By

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

Click for help

 

OSA is a member of CrossRef.

CrossCheck Deposited



Advanced Search

Recent ToC Categories (Beta)

Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

More News