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Proceedings Paper

Some Simple Mathematical Methods For Derivation Of Optical Image Quality Data From Edge Sharpness
Author(s): I. Overington; M. B. Brown
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Paper Abstract

Of the various methods available for evaluation of imaging performance of optical systems those which are most useful for application 'in the field' are those based on measurement of the quality of photographic images of edges. However, with such methods it is usually necessary to estimate the 'best' edge profile in the presence of noise, after which the edge must be differentiated to yield the line spread function and further processed to yield either the point spread function or the MTF. It is thus desirable to have available a reliable curve fitting facility in order to automate the analysis of edge data, or to have a means of rapid assessment manually of the spread functions and MTF associated with a given visually fitted 'best' edge profile. Simple but effective procedures will be discussed which provide widely applicable methods of dealing with edge data both automatically and manually.

Paper Details

Date Published: 12 October 1977
PDF: 8 pages
Proc. SPIE 0098, Assessment of Imaging Systems I, (12 October 1977); doi: 10.1117/12.955282
Show Author Affiliations
I. Overington, British Aircraft Corporation (G.W.) (U. K.)
M. B. Brown, British Aircraft Corporation (G.W.) (U. K.)


Published in SPIE Proceedings Vol. 0098:
Assessment of Imaging Systems I
Thomas L. Williams, Editor(s)

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