Computer-generated holograms of three-dimensional objects synthesized fromtheir multiple angular viewpoints.
Journal Title: Journal of the Optical Society of America A: Optics, Image Science & Vision - Year 2003, Vol 20, Issue 8
Abstract
Synthesizing computer-generated holograms (CGHs) of a general three-dimensional(3D) object is usually a heavy computational task. We propose and demonstrate a new algorithm for computingCGHs of 3D objects. In our scheme, many different angular projections of computer-designed 3D objectsare numerically processed to yield a single two-dimensional complex matrix. This matrix is equivalentto the complex amplitude of a wave front on the rear focal plane of a spherical lens when the objectis located near the front focal point and illuminated by a plane wave. Therefore the computed matrixcan be used as a CGH after it is encoded to a real positive-valued transparency. When such CGH is illuminatedby a plane wave, a 3D real image of the objects is constructed. The number of computer operations areequivalent to those of a two-dimensional Fourier CGH. Computer and optical constructions of 3D objects,both of which show the feasibility of the proposed approach, are described.
Authors and Affiliations
David Abookasis, Joseph Rosen
Keywords
Related Articles
- EP ID EP139041
- DOI -
- Views 58
- Downloads 0
Integration, segregation, and binocular combination.
The human visual system can accurately judge the mean of a distributionof different orientation samples. We ask whether the site of this integration is before or after thesites of binocular combination and disparity proc...
Computer-generated holograms of three-dimensional objects synthesized fromtheir multiple angular viewpoints.
Synthesizing computer-generated holograms (CGHs) of a general three-dimensional(3D) object is usually a heavy computational task. We propose and demonstrate a new algorithm for computingCGHs of 3D objects. In our scheme,...
Three-dimensional relationship between high-order root-mean-square wavefront error, pupil diameter, and aging.
We report root-mean-square (RMS) wavefront error (WFE) for individual aberrations and cumulative high-order (HO) RMS WFE for the normal human eye as a function of age by decade and pupil diameter in 1 mm steps from 3 to...
Integration of first- and second-order orientation.
The problem of how visual information such as orientation is combined acrossspace bears on key visual abiities, such as texture perception. Orientation signals can be derived fromboth luminance and contrast, but it is no...