The Influence of Grain Threshold on Quantum Mottle in Radiographic Screen-Film Systems

Majid Rabbani; Rodney Shaw

doi:10.1117/12.967002

1 January 1987 The Influence of Grain Threshold on Quantum Mottle in Radiographic Screen-Film Systems

Majid Rabbani, Rodney Shaw

Proceedings Volume 0767, Medical Imaging; (1987) https://doi.org/10.1117/12.967002
Event: Medical Imaging, 1987, Newport Beach, CA, United States

Abstract

We extend a previous analysis of the influence of stochastic amplifying and scattering mechanisms on the transfer of signal modulation and photon noise to include the simplest case of nonlinear film grain response, namely that associated with 2-quantum threshold. This special case allows an exact analytical solution for radiographic screen-film noise as a function of quantum exposure level. The solution has been derived under the assumption of a uniform checkerboard array of grains.

Citation Download Citation

Majid Rabbani and Rodney Shaw "The Influence of Grain Threshold on Quantum Mottle in Radiographic Screen-Film Systems", Proc. SPIE 0767, Medical Imaging, (1 January 1987); https://doi.org/10.1117/12.967002

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