Patent · US Active

System and method of iterative image reconstruction for computed tomography

US9261467B2 · kind B2 · utility

2Cited by

0References

21Claims

0Family size

Assignee

General Electric Company · US

Inventors

Jean-Baptiste Thibault · Milwaukee, US
Xue Rui · Clifton Park, US
Somesh Srivastava · Waukesha, US
Ken David Sauer · South Bend, US
Lin Fu · Niskayuna, US
Charles A. Bouman · West Lafayette, US

Key dates

Filing date	Jun 14, 2013
Grant date	Feb 16, 2016
Priority date	—
Expiry date	Apr 1, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG06T2211/424
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A system and method include acquisition of projection data from a scanned object, the set of projection data comprising a plurality of projection measurements. The system and method also include calculation of a set of modified statistical weights from the projection data, wherein a respective modified statistical weight of the set of modified statistical weights comprises a deviation from an inverse variance of a corresponding projection measurement of the projection data. The system and method further include reconstruction of an image of the scanned object using the set of modified statistical weights as coefficients in an iterative reconstruction algorithm.

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