Results 111 to 120 of about 234 (141)

Computer generation of binary Fresnel holography

Applied Optics, 2011
Binarization of Fresnel holograms by direct thresholding based on the polarity of the fringe pattern is studied. It is found that if the hologram is binarized (i.e., for black and white hologram pixels) in this manner, only the edges of the object are preserved in the reconstructed image. To alleviate the errors caused by binarization, the use of error
Tsang, Peter, Poon, Ting-Chung, Cheung, W. K., Liu, J. Ping   +3 more
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Computer-Generated Holography Algorithms

Frontiers in Optics + Laser Science 2023 (FiO, LS), 2023
Abstract not available.
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Computer generated holography for computer graphics

2011 3DTV Conference: The True Vision - Capture, Transmission and Display of 3D Video (3DTV-CON), 2011
3D displays are now rapidly designed, enhanced and sold. It is expected that after a boom of displays based on active glasses, new display generations will appear. Those would be probably displays with passive glasses, multiview autostereoscopic displays based on parallax barrier or lenticular technology, and displays based on integral photography ...
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Full phase and amplitude control in computer-generated holography

Optics Letters, 2009
We report what we believe to be the first realization of a computer-generated complex-valued hologram recorded in a single film of photoactive polymer. Complex-valued holograms give rise to a diffracted optical field with control over its amplitude and phase.
Fratz, M., Fischer, P. ; https://orcid.org/0000-0002-8600-5958, Giel, D.   +2 more
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New approach to computer-generated holography

SPIE Proceedings, 1990
A new fast approach to computer-generated holography for 3-D objects points in arbitrary positions in 3-D space is presented. The approach is based on fast computation of weighted zero-crossings their accumulation and thresholding to achieve a coded hologram to be physically generated. 1.
Okan K. Ersoy, C. Bubb
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Computer simulated holography and computer generated holograms

American Journal of Physics, 1996
The success of calculating and displaying the Fraunhofer diffraction patterns for various apertures using the fast Fourier transform algorithm on an IBM compatible personal computer has been well documented in the recent literature. In this paper the technique is extended to the simulation of optical holography on the computer.
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New method for computer-generated holography

Optical Society of America Annual Meeting, 1990
A new method for computer-generated holography is introduced, based on stacking zero crossings of partial wavefields and then quantizing. A fast method for finding the zero crossings when each partial wavefield results from a point source in space is discussed.
O. K. Ersoy, C. E. Bubb
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Computer-Generated Holography And Optical Testing

Optical Engineering, 1980
A computer-generated hologram is a geometric pattern that can be used as a precise reference in an optical test. Computer-generated holograms can be used to make reference wavefronts that would be very difficult and expensive to make by other methods. This paper reviews the development of computer-generated holograms for optical testing.
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Perceptually Guided Computer-generated Holography

London Imaging Meeting, 2022
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Computer-Generated Holography

2022
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