Abstract
Optical implementation of a three-dimensional (3-D) Fourier transform is proposed and demonstrated. A spatial 3-D object, as seen from the paraxial zone, is transformed to the 3-D spatial frequency space. Based on the new procedure, a 3-D joint transform correlator is described that is capable of recognizing targets in the 3-D space.
Original language | English |
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Pages (from-to) | 964-966 |
Number of pages | 3 |
Journal | Optics Letters |
Volume | 22 |
Issue number | 13 |
DOIs | |
State | Published - 1 Jul 1997 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics