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Median and spatial low‐pass filtering in ultrasonic computed tomography
Author(s) -
Schmitt R. M.,
Meyer C. R.,
Carson P. L.,
Samuels B. I.
Publication year - 1984
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.595578
Subject(s) - ultrasonic sensor , computer vision , attenuation , artificial intelligence , tomography , computed tomography , iterative reconstruction , noise (video) , computer science , ultrasound , spatial filter , median filter , mathematics , acoustics , image processing , optics , image (mathematics) , medicine , physics , radiology
To reduce noise‐ and reconstruction‐related artifacts in ultrasound computed tomography, the use of combined median and Hamming‐weighted spatial low‐pass filtering is evaluated. The evaluation of the reconstruction filters uses both computer‐generated projections of a known object with the least mean‐square error criterion as well as a more subjective evaluation of conventional ultrasonic attenuation and speed of sound images.