Beyond noise power in 3D computed tomography: The local NPS and off-diagonal elements of the Fourier domain covariance matrix

Medical Physics

Volumn 39, Issue 6, 2012, Pages 3240-3252

  Pineda, Angel R ^a   Tward, Daniel J ^b   Gonzalez, Antonio ^a   Siewerdsen, Jeffrey H ^b,c,d  

^a CALIFORNIA STATE UNIVERSITY   (United States)

^b Johns Hopkins University   (United States)

^c Johns Hopkins University   (United States)

^d JOHNS HOPKINS HOSPITAL   (United States)

Author keywords

computed tomography; cone beam CT; covariance matrix; image quality; noise power spectrum; stationarity

Indexed keywords

AIR FILTERS; COVARIANCE MATRIX; CYLINDERS (SHAPES); DISCRETE FOURIER TRANSFORMS; IMAGE QUALITY; MATCHED FILTERS; PHANTOMS; POWER SPECTRUM; X RAY DETECTORS; X RAY TUBES; X RAYS;

3D COMPUTED TOMOGRAPHIES; AZIMUTHAL CORRELATIONS; CONE-BEAM CT; EXPERIMENTAL CONDITIONS; NOISE POWER SPECTRUM; PERFORMANCE CHARACTERIZATION; STATIONARITY; VOLUMETRIC COMPUTED TOMOGRAPHIES;

COMPUTERIZED TOMOGRAPHY;

EID: 84863533966     PISSN: 00942405     EISSN: None     Source Type: Journal    
DOI: 10.1118/1.4705354     Document Type: Article

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