Computer-generated holograms of three-dimensional objects synthesized from their multiple angular viewpoints

David Abookasis, Joseph Rosen

Research output: Contribution to journalArticlepeer-review

101 Scopus citations

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 computing CGHs of 3D objects. In our scheme, many different angular projections of computer-designed 3D objects are numerically processed to yield a single two-dimensional complex matrix. This matrix is equivalent to the complex amplitude of a wave front on the rear focal plane of a spherical lens when the object is located near the front focal point and illuminated by a plane wave. Therefore the computed matrix can be used as a CGH after it is encoded to a real positive-valued transparency. When such CGH is illuminated by a plane wave, a 3D real image of the objects is constructed. The number of computer operations are equivalent 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.

Original languageEnglish
Pages (from-to)1537-1545
Number of pages9
JournalJournal of the Optical Society of America A: Optics and Image Science, and Vision
Volume20
Issue number8
DOIs
StatePublished - 1 Jan 2003

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Computer Vision and Pattern Recognition

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