Patent · US Active

Method and system for up-vector detection for ribs in computed tomography volumes

US9020233B2 · kind B2 · utility

2Cited by

5References

28Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

David Liu · San Francisco, US
Hao Xu · Suzhou, CN
Dijia Wu · Shanghai, CN
Christian Tietjen · Ergolding, DE
Grzegorz Soza · Heroldsberg, DE
Shaohua Kevin Zhou · Plainsboro, US
Dorin Comaniciu · Princeton Junction, US

Key dates

Filing date	Sep 4, 2012
Grant date	Apr 28, 2015
Priority date	—
Expiry date	May 16, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG06T2207/30172
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method and system for up-vector detection for ribs in a 3D medical image volume, such as a computed tomography (CT) volume is disclosed. A rib centerline of at least one rib is extracted in a 3D medical image volume. An up-vector is automatically detected at each of a plurality of centerline points of the rib centerline of the at least one rib. The up-vector at each centerline point can be detected using a trained regression function. Alternatively, the up-vector at each centerline point can be detected by detecting an ellipse shape in a cross-sectional rib image generated at each centerline point.

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