The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 11, 2005
Filed:
Nov. 13, 2001
Jasjit S. Suri, Highland Heights, OH (US);
Kecheng Liu, Solon, OH (US);
Dee H. Wu, Shaker Heights, OH (US);
Jasjit S. Suri, Highland Heights, OH (US);
Kecheng Liu, Solon, OH (US);
Dee H. Wu, Shaker Heights, OH (US);
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A two-dimensional slice formed of pixels () is extracted from the angiographic image () after enhancing the vessel edges by second order spatial differentiation (). Imaged vascular structures in the slice are located () and flood-filled (). The edges of the filled regions are iteratively eroded to identify vessel centers (). The extracting, locating, flood-filling, and eroding is repeated () for a plurality of slices to generate a plurality of vessel centers () that are representative of the vascular system. A vessel center () is selected, and a corresponding vessel direction () and orthogonal plane () are found. The vessel boundaries () in the orthogonal plane () are identified by iteratively propagating () a closed geometric contour arranged about the vessel center (). The selecting, finding, and estimating are repeated for the plurality of vessel centers (). The estimated vessel boundaries () are interpolated () to form a vascular tree ().