X-ray medical imaging. X-detectors characterization : SNR of a pixel

SNR of a pixel
X-ray medical imaging. X-detectors characterization

Author : Thierry LEMOINE

Publication date: March 10, 2015 | Lire en français

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3. SNR of a pixel

3.1 Signal-to-noise ratio per pixel

We can now estimate the signal-to-noise ratio of each pixel, $〈 SNR 〉$ . By definition, this is the ratio between the average signal per pixel and the standard deviation of this signal (the effective noise amplitude):

$〈 SNR 〉 = 〈 S_{px} 〉 {/σ}_{qu}$ .

For a uniform dose D_in, the average...

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SNR of a pixel

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NEQ and DQE

Bibliography

(1) - VAN METTER (R.), BEUTEL (J.), KUNDEL (H.) - Handbook of medical imaging. Physics and psycho-physics. - SPIE Press Monograph, part.1, vol. 1 (2000).
(2) - WEBB (S.) - The physics of medical imaging. - Taylor & Francis Editors (1998).
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SNR of a pixel X-ray medical imaging. X-detectors characterization

3. SNR of a pixel

3.1 Signal-to-noise ratio per pixel

Bibliography

SNR of a pixel
X-ray medical imaging. X-detectors characterization