Modulation transfer function definition

Modulation transfer function means the modulus of the Fourier transform of the impulse response of the system.
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Modulation transfer function meansContrast scale = where:µ x − µ w(CT)x − (CT)wthe modulus of the Fourier transform of the impulse response of the system.
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Examples of Modulation transfer function in a sentence

  • The main visual metrics outputted by the OQAS device include, • Modulation transfer function (MTF) cut-off value – the highest spatial frequency (in cycles per degree) at which the eye can image an object on the retina with a contrast of 1 %• Objective scattering index (OSI) – an objective measure of intraocular scatter, comparing the amount of light falling outside the double-pass retinal intensity PSF and the amount of light at the centre of the PSF.

  • Modulation transfer function analysis of a newly revised rotational panoramic machine.

  • The representative of Cimos and Metris were present at the meetings with positive approach to cooperation with HEI and their experience with students.The Expert Panel also visited Metris where the detailed presentation of the laboratory was held, and their cooperation with students was assessed as a good practice and quality.

  • Modulation transfer function (MTF) is a measure of spatial resolution which quantifies image sharpness.

  • Modulation transfer function (MTF) (a) obtained with the PSF 2D method in the CBCT system for the three studied reconstruction filters: sharp (orange), standard (purple), and smooth (light blue); (b) comparison between the MTF func- tions corresponding to the CBCT with the standard reconstruction filter (purple) and the CT with 80 mAs and the detector configuration 2 × 16 (pink).

  • Short term adaptation including enhancement of changes and temporal integration is simulated and allows a quantitative prediction of important temporal effects in auditory perception.The last processing step of the auditory model is a first order low pass filter with a cutoff frequency of 4Hz. It attenuates fast envelope fluctuations of 0Attenuation [dB]-5-10-15-20-25-300 5 10 15 20 25 30 35 40Modulation Frequency [Hz] Figure 2.2: Modulation transfer function of PEMO.

  • Modulation transfer function [MTF(f)] for a 150-μm- thick CsI(Tl) converter before and after treatment with absorptive coating and compression.The data show dramatic improvements in screen MTF(f) after surface treatments.

  • Modulation transfer function of the imaging system at the object plane with both the LED and VCSEL illumination systems.

  • Modulation transfer function is a measure of the degradation of an image as it appears at the output screen of the assembly as correlated to the input pattern which is normalized to 100 percent contrast at a spatial frequency equal to or less than 0.2 lines per millimeter.

  • Modulation transfer function evaluation of cone beam computed tomography for dental use with the oversampling method.

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