Modulation-transfer-function analysis for sampled image systems

Park, Stephen K.; Schowengerdt, Robert A.; Kaczynski, Mary-Anne

doi:10.1364/ao.23.002572

Cited by 181 publications

(93 citation statements)

References 9 publications

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“…Metz 26 approaches the problem in essentially the same manner as discussed in this paper, and indeed Eqs. (19) and (30) of that paper essentially give our Eq. (38), but for a slightly more specialized case.…”

Section: (43)mentioning

confidence: 99%

3-Dimensional Imaging of the Breast

Maidment¹

2002

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Section: (43)mentioning

confidence: 99%

3-Dimensional Imaging of the Breast

Maidment¹

2002

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“…S.B.Campana pointed out in using contrast method (streak target) to measure MTF of CCD that if the phases of streak target and CCD change when the input signal frequency is near Nyquist frequency [6], MTF values of CCD fluctuate. S. K. Park proposed to use average MTF to evaluate the imaging quality of discrete imaging systems based on point spread function Fourier transform [7]. J.Feltz used a line-array CCD signal in the sinusoidal input signal period to output the maximum value and the minimum value according to the contrast definition of MTF so as to offer the line-array CCD and expression of phaserelated MTF [8].…”

Section: Introductionmentioning

confidence: 99%

Research on modulation transfer function of the linear-array CCD for hyperspectral imager

qiang

hong

2017

MATEC Web Conf.

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Abstract.As an image-spectrum merging technology, hyperspectral imaging has been used in battlefield reconnaissance rapidly．Based on response of CCD to the sine input signal, the period and extremal positions of output signal were analyzed and simulated. According to the definition of MTF based on contrast, three expressions of the average MTF of line-array CCD were presented and compared with those based on Fourier transform method. Finally, the average MTF of line-array CCD is confirmed. Accordingly, the characteristics of modulation transfer function of line-array CCD are studied. The simulation results indicate that the frequency increase, while at Nuquist frequency, the effect of the initial position, which becomes much stronger with frequency increase, while at other frequency, the effet of the initial position is weak. In the frequency range of |ζ |>0.1%,the effect of the initial position on MTF can be ignored.

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“…Among the variety of the spectrophotometrical and electronic parameters of the sensor, the signal to noise ratio and the modulation transfer function (MTF) are the essential characteristics influencing the quality of the output image. The MTF is a classic measure characterizing the spatial-frequency response of the array imaging systems [2], where the sensor's MTF limits the spatialfrequency content of the output image. In other words, the MTF gives quantitative information about imaging performance of an image-forming system, i.e.…”

Section: Introductionmentioning

confidence: 99%

Investigation of a CCD modulation transfer function using the speckle method at different laser wavelengths and sub-windowing options

Nasibov

Kholmatov

Nasibov

et al. 2011

Int. J. Metrol. Qual. Eng.

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Abstract.We have experimentally investigated the MTF of a scientific grade CCD, especially considering its behavior induced by different laser wavelengths (from 470 nm to 633 nm) and varying number of total charge transfers. The MTF measurements were performed using laser speckles and utilizing the single-slit method. The MTF of the sensor was examined from zero to the Nyquist frequency. The results obtained at different wavelengths were compared. It was shown that the spectral behavior of the MTF is negligibly small; moreover the small variation is observed at the high frequency region. It was also observed that the variation of the total number of charge transfers, adjusted by size and location of the region of interest for readout pattern, is within the intrinsic error of the single-slit aperture laser speckle method.

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Modulation-transfer-function analysis for sampled image systems

Cited by 181 publications

References 9 publications

3-Dimensional Imaging of the Breast

3-Dimensional Imaging of the Breast

Research on modulation transfer function of the linear-array CCD for hyperspectral imager

Investigation of a CCD modulation transfer function using the speckle method at different laser wavelengths and sub-windowing options

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