[Wiener spectra of roentgen film-screen combinations].
Radiographic noise of screen-film combinations used in medical diagnostics can be described quantitatively by means of a power spectrum (Wiener spectrum) by which the quantum mottle can be mathematically expressed. The authors present a measurement method for power spectra and the results obtained with several screen-film combinations. The influence of various parameters on the spectra is discussed, such as sensitivity, transfermodulation film-function, and noise.
D006801:Humans; D007257:Information Theory; D011856:Radiographic Image Enhancement / Q000295:instrumentation; D014963:X-Ray Intensifying Screens
Wienerspektren von Röntgenfilm-Folien-Kombinationen.