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Proceedings Paper

Edge-Response Functions, Line-Spread Functions, And Point-Spread Functions Corresponding To Electro-Optical Modulation Transfer Functions Of The Form EXP-(f/fc)n
Author(s): C. B. Johnson
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Paper Abstract

The modulation transfer functions (MTFs) of many optical and electro-optical imaging devices have the form (Ref. 1); T(f) = exp -(f/fc)n (1) where T(f) is the MTF, f is the spatial frequency in cycles/mm, fc is the frequency constant in cycles/mm, and n is the MTF index. It is usually possible to find values for the two MTF parameters fc and n such that the measured MTF agrees with equation (1) to within +0.05. Electro-optical devices have been classified (Ref. 2) in terms of the MTF parameters associated with each device. Now it is found that it is possible to extend this method of classification to optical devices and image transfer/display systems. In addition, the edge-response functions, line-spread functions, and point-spread functions associated with MTFs of this form are described, and the transformation equations are given.

Paper Details

Date Published: 16 April 1973
PDF: 4 pages
Proc. SPIE 0032, Developments in Electronic Imaging Techniques II, (16 April 1973); doi: 10.1117/12.953592
Show Author Affiliations
C. B. Johnson, Bendix Research Laboratories (United States)

Published in SPIE Proceedings Vol. 0032:
Developments in Electronic Imaging Techniques II
Ralph Zirkind; Sol Nudelman; Alvin Schnitzler, Editor(s)

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