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- W2023992730 abstract "Lack of perception at high densities on radiographs and the influence of viewing conditions on it are well known. This lack may be caused by blinding effects, by high visual noise at low light intensities or by a third phenomenon i.e. the dependence of the sensitometric properties of film on viewing conditions, which is analyzed in this paper. Reflection of ambient light by the film mainly lowers dramatically high densities and film contrast at these densities. Sensitometric curves of several films were measured under different viewing conditions by means of a telescopic photometer. The curves also can be deduced from curves measured by a regular densitometer when the optical properties of the film, the ambient light level and the light intensity of the negatoscope are known. The influence of the phenomenon under typical viewing conditions for the Curix MR4-film is demonstrated by means of sensitometric- and perceptibility-curves." @default.
- W2023992730 created "2016-06-24" @default.
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- W2023992730 date "1981-07-16" @default.
- W2023992730 modified "2023-09-23" @default.
- W2023992730 title "<title>Influence Of Ambient Light On The Visual Sensitometric Properties Of, And Detail Perception On, A Radiograph</title>" @default.
- W2023992730 doi "https://doi.org/10.1117/12.931782" @default.
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