Asymmetric detector system
Asymmetric detector system
Keyword: Tomography
Applicant: Analogic Corp. (US)Patent number: WO9823209Publication date: 4 June 1998Title: Helical computed tomography with asymmetric detector system
The invention provides an improved helical weighting system that applies a helical halfscan technique to data collected by a symmetric portion of an asymmetric detector system and applies a helical fullscan technique to data collected by an asymmetric portion of the asymmetric detector system. These objects are further provided by an equi-angle interpolator, a streak artefact suppression filter, and an isocentre interpolator that preserve the distinction between even and odd data points in parallel beam projection data. The invention is capable of other and different embodiments, and its several details are capable of modifications in various respects, all without departing from the invention.
