Interpretation of the optical transfer function: Significance for image scanning microscopy.
Opt Express
; 24(24): 27280-27287, 2016 Nov 28.
Article
em En
| MEDLINE
| ID: mdl-27906300
ABSTRACT
The optical transfer function (OTF) is widely used to compare the performance of different optical systems. Conventionally, the OTF is normalized to unity for zero spatial frequency, but in some cases it is better to consider the unnormalized OTF, which gives the absolute value of the image signal. Examples are in confocal microscopy and image scanning microscopy, where the signal level increases with pinhole or array size. Comparison of the respective unnormalized OTFs gives useful insight into their relative performance. The significance of other properties of the general OTF is discussed.
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Base de dados:
MEDLINE
Idioma:
En
Revista:
Opt Express
Assunto da revista:
OFTALMOLOGIA
Ano de publicação:
2016
Tipo de documento:
Article