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Proceedings Paper

Logarithmic phase filter to extend the depth of field of incoherent hybrid imaging systems
Author(s): Sherif S. Sherif; Edward R. Dowski; W. Thomas Cathey
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Paper Abstract

We describe a logarithmic phase filter to extend the depth of field of incoherent optical hybrid imaging systems with a rectangular aperture. By introducing this filter at the system's exit pupil and digitally processing the detector's output, we were able to extend the depth of field by an order of magnitude more than the Hopkins defocus criterion.

Paper Details

Date Published: 13 November 2001
PDF: 9 pages
Proc. SPIE 4471, Algorithms and Systems for Optical Information Processing V, (13 November 2001); doi: 10.1117/12.449345
Show Author Affiliations
Sherif S. Sherif, Univ. of Colorado/Boulder (United States)
Edward R. Dowski, Univ. of Colorado/Boulder (United States)
W. Thomas Cathey, Univ. of Colorado/Boulder (United States)


Published in SPIE Proceedings Vol. 4471:
Algorithms and Systems for Optical Information Processing V
Bahram Javidi; Demetri Psaltis, Editor(s)

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