Real-time image reconstruction for computed tomography systems
CA 2324832 A1 · Owner: Leger, Germain · Inventors: Leger, Germain; Selivanov, Vitali; Lecomte, Roger
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention discloses a method and a system for realtime reconstruction of tomographic images from projection data-generated by computed tomography scanners. The method is based on the theory of pseudoinverse matrices applied to tomographic image reconstruction and it allows, immediate, projection-by-projection or event-by-event updating of the reconstructed tomographic image at the moment the measuring instrument supplies additional individual projection data. The data processing involves simple arithmetic, which can be implemented into general-purpose computers in the first case, and dedicated programmable logic or application specific circuits in the second case. Models of the …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed October 31, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 31, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 31, 2022.
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Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.