Patent · US Active

Vessel tree tracking in angiography videos

US9521988B2 · kind B2 · utility

2Cited by

0References

15Claims

0Family size

Assignee

Siemens Healthcare Limited · DE

Inventors

Dong-Qing Zhang · Plainsboro, US
Shanhui Sun · Princeton, US
Ziyan Wu · Lexington, US
Bor-Jeng Chen · Los Angeles, US
Andreas Meyer · Bubenreuth, DE
Terrence Chen · Princeton, US

Key dates

Filing date	Mar 26, 2015
Grant date	Dec 20, 2016
Priority date	—
Expiry date	Mar 26, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG06T2207/30101
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A method for tracking vessels in image data includes receiving a plurality of image frames and annotating a target vessel in the plurality of image frames. A plurality of tracking targets associated with the target vessel is selected based on a first image frame included in the plurality of image frames. For each respective image frame, a set of tracking points are determined according to a tracking algorithm which includes: selecting a plurality of landmark hypothesis points for each tracking target in the respective frame based on a comparison with a previous image frame, constructing a directed acyclic graph from the plurality of landmark hypothesis points, and solving the directed acyclic graph to yield a plurality of optimal landmarks for the respective image frame.

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