Geoffrey Douglas Hugo

US Patent:

20130121551, May 16, 2013

Filed:

Nov 10, 2011

Appl. No.:

13/294038

Inventors:

Per Rugaard Poulsen - Aabyhoej, DK
Walther Fledelius - Horsens, DK
Paul Keall - Greenwich, AU
Elisabeth Weiss - Williamsburg VA, US
Jun Lu - Henrico VA, US
Emily Brackbill - Wyomissing PA, US
Geoffrey Hugo - Richmond VA, US

International Classification:

G06K 9/00

US Classification:

382131

Abstract:

A method of determining a model of a marker includes obtaining projection images, each of the projection images having an image of a marker that indicates a shape of the marker, determining binary images of the marker for respective ones of the projection images, and constructing a three-dimensional model of the marker using the binary images, the three-dimensional model comprising a set of voxels in a three-dimensional space that collectively indicates a three-dimensional shape of the marker, wherein the act of constructing the three-dimensional model is performed using a processing unit.