Optical quasi-three-dimensional correlation

Youzhi Li, Joseph Rosen

Research output: Contribution to journalConference articlepeer-review


A novel optical correlator for three-dimensional (3-D) object recognition is proposed herein. Several projections of a 3-D scene are recorded under white light illumination and fused into a single complex two-dimensional function. After properly filtering this function, it is then coded into a computer-generated hologram (CGH). When the CGH is coherently illuminated, a correlation space between the 3-D tested scene and the reference function is reconstructed, in which light peaks indicate on the existences and locations of true targets in the observed 3-D scene. Experimental results are presented.

Original languageEnglish
Pages (from-to)27-35
Number of pages9
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 1 Dec 2002
EventAlgorithms and Systems for Optical Information Processing VI - Seattle, WA, United States
Duration: 9 Jul 200210 Jul 2002


  • Computer-generated hologram
  • Pattern recognition and feature extraction
  • Three-dimensional optical correlation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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