Patent · US Active

Method for filtering tomographic 3D images after completed reconstruction of volume data

US7650023B2 · kind B2 · utility

8Cited by

22References

24Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Daniel Fischer · Fribourg, CH
Thomas Flohr · Uehlfeld, DE
Rainer Raupach · Heroldsbach, DE

Key dates

Filing date	Feb 23, 2005
Grant date	Jan 19, 2010
Priority date	—
Expiry date	Dec 24, 2026

Classification

Technology area (CPC G)Physics
CPC primaryG06T11/008
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method is for filtering tomographic 3D images of an examination object. The examination object is imaged by using a volume model that divides the volume of the examination object into a multiplicity of three-dimensional image voxels with individual image values, wherein the image value of each voxel reproduces an object-specific property of the examination object in this volume. After the reconstruction of the total volume for each voxel, variances are calculated in a prescribed region or radius R in order to determine contrast jumps and their spatial orientation with their tangential planes T. The image values in the tangential plane T are filtered with a two-dimensional convolution, and subsequently the original voxel data are mixed in weighted fashion with the filtered voxel data.

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