Degrees of Freedom of an Image in the Presence of Noise and 'a Priori' Information

The mathematical technique applied by Gori and Guttari for calculation of degrees of freedom in images formed by point-like elemental pupils is extended to continuous pupils. Eigenvalues of the imaging equation are calculated for the sinc as well as the sinc 2 kernel. The effect of noise and 'a...

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Veröffentlicht in:	Journal of modern optics 1991-10, Vol.38 (10), p.1927-1934
Hauptverfasser:	Gupta, S., Virdi, S.P.S.
Format:	Artikel
Sprache:	eng
Schlagworte:	Exact sciences and technology Fundamental areas of phenomenology (including applications) Imaging and optical processing Optics Physics
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	The mathematical technique applied by Gori and Guttari for calculation of degrees of freedom in images formed by point-like elemental pupils is extended to continuous pupils. Eigenvalues of the imaging equation are calculated for the sinc as well as the sinc 2 kernel. The effect of noise and 'a priori' information are taken into account.
ISSN:	0950-0340 1362-3044
DOI:	10.1080/09500349114552041