Abstract
It is claimed and demonstrated by example, that boundaries of regions, whose densities vary considerably during the scan time, are usually readily recognizable in comput(eriz)ed (computer-assisted) tomographic images, even when the number of measured (or given) projections is few enough that the images are strongly contaminated with ‘streak’ artefacts. Several illustrative examples are presented. The data was obtained from computer-generated phantoms, from physical phantoms measured with a low resolution computerized tomography (CT) scanner, and from high resolution CT measurement of a canine thorax.
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