Verfahren und Vorrichtung zur dreidimensionalen Bilderzeugung eines Objektes mit zwei Kreisbahnen gemeinsamer Achse

摘要

Method for reconstructing three-dimensional images of an object with the aid of measurements carried out by two-dimensional networks of sensors over a succession of incidences around the object. There exist at least two coaxial circular paths (2, 2') over which the networks (4, 4') are moved. Hence it is possible either to speed up the taking of images or to increase the volume of the measurements or speed up the calculation of the reconstructed image, by virtue of the use of a single reference mark in the coordinates from which the sums of the measurements on each sensor are characterised. Application to medical imaging or to the non-destructive monitoring of parts in radiation attenuation or emission tomography.