Patent ID: 7773787
Filing Date: 2010-08-10
Classification: G06T

Abstract:
1. A method for detecting a boundary of a vessel in an angiography image comprising: propagating at a processor a plurality of rays from a seed point within said boundary of said vessel of said angiography image; detecting at the processor a plurality of multi-scale edges for each of said plurality of rays in said angiography image based on a change in intensity between data points over a plurality of distances of each of said plurality of rays, by combining edges obtained from different spatial scales of mean-shift filtering along each of said plurality of rays; selecting at the processor a set of edges from said plurality of multi-scale edges using a prominent-edge selection algorithm; determining at the processor an initial vessel boundary based on said selected set of edges; and applying at the processor a shape descriptor to said initial vessel boundary to determine a final vessel boundary.