optical transfer function
E672913
The optical transfer function is a frequency-domain representation of an optical system’s imaging performance, describing how different spatial frequencies (detail levels) are transmitted in terms of contrast and phase.
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
frequency-domain representation
ⓘ
optical system characteristic ⓘ |
| assumes | linear shift-invariant system for strict definition ⓘ |
| canBe |
radially averaged to yield one-dimensional function
ⓘ
two-dimensional function of spatial frequency ⓘ |
| characterizes |
contrast transfer
ⓘ
how spatial frequencies are transmitted ⓘ phase transfer ⓘ |
| dependsOn |
aperture stop
ⓘ
defocus ⓘ field position ⓘ optical aberrations ⓘ pupil function ⓘ wavelength ⓘ |
| describes | imaging performance of an optical system ⓘ |
| domain | spatial frequency ⓘ |
| field |
imaging science
ⓘ
optics ⓘ signal processing ⓘ |
| hasComponent |
modulation transfer function
ⓘ
phase transfer function ⓘ |
| hasMagnitude | modulation transfer function ⓘ |
| hasPhase | phase transfer function ⓘ |
| isComplexValued | true ⓘ |
| isFourierTransformOf | point spread function ⓘ |
| isMeasuredBy |
bar-target method (via MTF)
ⓘ
pinhole or point-source imaging (via PSF) ⓘ slanted-edge method (via MTF) ⓘ |
| isRelatedTo |
contrast transfer function
ⓘ
line spread function ⓘ optical modulation transfer function ⓘ phase transfer function ⓘ system transfer function ⓘ |
| isStandardizedIn | ISO standards for MTF measurement ⓘ |
| isUsedIn |
camera lens testing
ⓘ
computational imaging ⓘ deconvolution ⓘ image quality assessment ⓘ image restoration ⓘ lens design ⓘ medical imaging system characterization ⓘ microscope performance analysis ⓘ optical system evaluation ⓘ remote sensing imaging analysis ⓘ super-resolution methods ⓘ telescope performance analysis ⓘ |
| represents | response of an optical system in spatial-frequency domain ⓘ |
| variable |
spatial frequency in cycles per millimeter
ⓘ
spatial frequency in line pairs per millimeter ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.