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Proceedings Paper

Depth from rotating point spread functions
Author(s): Adam Greengard; Yoav Yosef Schechner; Rafael Piestun
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Paper Abstract

We present a method for passive ranging with incoherent light. The scheme uses a single optical channel and is particularly suitable for locating and ranging particles. Our aim is to create an optical system with increased discrimination among depth planes as compared to classical clear aperture solutions. We thus propose a criterion for evaluating a general point spread function for use in passive ranging. Then, we show that rotating point spread functions are good according to this criterion. An experimental realization of the point spread function by use of a computer-generated hologram is presented as well as a simulation of its depth discrimination.

Paper Details

Date Published: 22 October 2004
PDF: 7 pages
Proc. SPIE 5557, Optical Information Systems II, (22 October 2004); doi: 10.1117/12.560169
Show Author Affiliations
Adam Greengard, Univ. of Colorado/Boulder (United States)
Yoav Yosef Schechner, Technion-Israel Institute of Technology (Israel)
Rafael Piestun, Univ. of Colorado/Boulder (United States)


Published in SPIE Proceedings Vol. 5557:
Optical Information Systems II
Bahram Javidi; Demetri Psaltis, Editor(s)

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