Measuring the high frequency performance of digital image acquisition systems

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Measuring the high frequency performance of digital image acquisition systems

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A new method for measuring the two dimensional modulation transfer function of an image acquisition system containing a CCD array has been described. The results were as predicted by theory. System signal aliasing and feature representation have been discussed. Horizontal cutoff frequencies as low as 40% of the vertical were recorded.

Inspec keywords: image recognition; feature extraction; optical modulation; CCD image sensors

Other keywords: system signal aliasing; horizontal cutoff frequencies; two dimensional modulation transfer function; feature representation; digital image acquisition systems; CCD array

Subjects: Optical information, image and video signal processing; Image sensors; Other field effect integrated circuits; Modulation and coding methods

References

    1. 1)
      • R.M. Mersereau . The processing of hexagonally sampled two dimensional signals. Proc IEEE , 6 , 930 - 949
    2. 2)
      • Staunton, R.C.: `Edge detector error estimation incorporating ccd camera limitations', IEEE Norsig96 Signal Process. Conf., 1996, Espoo, Finland, p. 243–246.
    3. 3)
      • A.P. Tzannes , J.M. Mooney . Measurement of the modulation transfer function of infrared cameras. Opt. Eng. , 6 , 1808 - 1817
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