Patent · US Active

Under-sampled, multi-energy computed tomography (CT) data acquisition data processing

US9031298B2 · kind B2 · utility

0Cited by
1References
28Claims
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Key dates

Filing dateOct 26, 2011
Grant dateMay 12, 2015
Priority date—
Expiry dateApr 14, 2032

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06T2211/408
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A method includes extracting a fully sampled fixed kVp sinogram for a pre-determined kVp of interest from an under-sampled mixed kVp sinogram generated from a switched kVp computed tomography scan. A system includes a fixed sinogram extractor that extracts a fully sampled fixed kVp sinogram from an under-sampled mixed kVp sinogram from a switched kVp computed tomography scan. A method includes de-noising at least one of a fully sampled fixed kVp sinogram extracted from an under-sampled mixed kVp sinogram or the under-sampled mixed kVp sinogram by smoothing lower kVp measurements of the sinograms and sharpening higher kVp measurements of the sinograms.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.