Median and spatial low-pass filtering in ultrasonic computed tomography

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 mea...

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Bibliographic Details
Published inMedical physics (Lancaster) Vol. 11; no. 6; p. 767
Main Authors Schmitt, R M, Meyer, C R, Carson, P L, Samuels, B I
Format Journal Article
LanguageEnglish
Published United States 01.11.1984
Subjects
Breast - anatomy & histology
Computers
Humans
Models, Structural
Tomography - methods
Ultrasonography - methods
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Summary: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.
ISSN:0094-2405
DOI:10.1118/1.595578