X-ray medical imaging. X-detectors characterization : NEQ and DQE

NEQ and DQE
X-ray medical imaging. X-detectors characterization

Author : Thierry LEMOINE

Publication date: March 10, 2015 | Lire en français

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4. NEQ and DQE

4.1 NEQ: noise-equivalent quanta

Convenient but simplistic, $〈 SNR 〉$ per pixel does not account for the frequency dependence of noise in the image. For any signal $C (\overset{˘}{C} (f) = TF [C (x)])$ , we therefore define the square of the signal-to-noise ratio (SNR²)...

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NEQ and DQE

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page SNR of a pixel

Drag and other memory effects

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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NEQ and DQE X-ray medical imaging. X-detectors characterization

4. NEQ and DQE

4.1 NEQ: noise-equivalent quanta

Bibliography

NEQ and DQE
X-ray medical imaging. X-detectors characterization