4 November 1981 Deconvolution Technique For The Improvement Of Contrast Of Image Intensifiers
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A mathematical filter which improves the contrast response of image intensifiers is derived. The filter is obtained by inverting the point spread function (PSF) of the system. A point spread function which takes into account the spread of light in the image intensi-fier system is proposed using physical arguments. The PSF has two parameters which are the range and the fraction of light which spreads. These two parameters are determined by a least squares fit to the experimentally measured data. The inverse filter is used in the deconvolution of video images. The results indicate that a substantial improvement in the contrast ratio of the system can be achieved by this technique.*
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J. A. Seibert, J. A. Seibert, O. Nalcioglu, O. Nalcioglu, W. W. Roeck, W. W. Roeck, "Deconvolution Technique For The Improvement Of Contrast Of Image Intensifiers", Proc. SPIE 0314, Digital Radiography, (4 November 1981); doi: 10.1117/12.933064; https://doi.org/10.1117/12.933064


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