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Proceedings Paper

Characterization And Measurement Of Noise Properties For A Digital Radiography System
Author(s): C. G. Shaw; D. A. Bassano
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Paper Abstract

An expression for the noise in digitized video images is derived assuming an arbitrary video data transformation. From this expression, the ratio of quantum noise to camera noise is detenained. Unlike the noise itself, this ratio is independent of the video data transformation. The other quantity independent of the video data transformation is the pixel contrast signal-to-noise ratio. Noise measurements for linear and logarithmic video amplification are presented and discussed. The use of noise measurements on linearly amplified video images for estimating the system signal-to-noise ratio and the noise equivalent detected photon flux is demonstrated.

Paper Details

Date Published: 29 December 1982
PDF: 10 pages
Proc. SPIE 0347, Application of Optical Instrumentation in Medicine X, (29 December 1982); doi: 10.1117/12.933803
Show Author Affiliations
C. G. Shaw, State University of New York (United States)
D. A. Bassano, State University of New York (United States)


Published in SPIE Proceedings Vol. 0347:
Application of Optical Instrumentation in Medicine X
Gary D. Fullerton; James A. Mulvaney; Arthur G. Haus; William S. Properzio, Editor(s)

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