Patent · US Active

Calculating the motion vector field for a reconstructed CT scan image

US9636074B2 · kind B2 · utility

1Cited by
2References
18Claims
0Family size

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Key dates

Filing dateOct 21, 2015
Grant dateMay 2, 2017
Priority date—
Expiry dateJan 14, 2036

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06T2211/412
  • WIPO fieldMedical technology
  • WIPO sectorInstruments

Abstract

A method for calculating a motion vector field (MVF) in a reconstructed CT scan image, comprises: determining a region of interest (ROI) based on a vessel centreline in a first reconstructed CT scan image, wherein a motion vector field (MVF) for the ROI is to be calculated; determining at least two time control points for calculating the MVF; calculating a motion level factor of the ROI; calculating motion amounts of the MVF corresponding to each of the time control points; determining the direction of the MVF of the ROI; and calculating the MVF of the ROI according to the motion level factor, the motion amounts of the MVF corresponding to each of the time control points and the direction of the MVF.

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