Patent · US Active

Method for the reduction of artifacts in image data sets and computing facility

US9224201B2 · kind B2 · utility

1Cited by

6References

19Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Christoph Köhler · Bodolz, DE
Bernd Schreiber · Heroldsbach, DE

Key dates

Filing date	Aug 27, 2013
Grant date	Dec 29, 2015
Priority date	—
Expiry date	Mar 21, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG06T2207/30016
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method for the reduction of artifacts based on an unequal representation of the same material classes in various locations, in particular of cupping artifacts, in a three-dimensional image data set, reconstructed from two-dimensional x-ray projection images is provided. An image datum, describing an attenuation value, is allocated respectively to a voxel, wherein at least two material class regions are located in a post-processing step, which receive, in particular, image data, which is homogeneously distributed and lies in an expected material class interval of the attenuation values, and, considering at least one characteristic of the material class regions, calculates a smooth homogenization function, which is to be applied to the image data of the entire image data set and is applied to the image data of the image data set.

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