Image analysis – Applications – Biomedical applications
Patent
1996-12-23
1999-02-16
Au, Amelia
Image analysis
Applications
Biomedical applications
382199, 128922, G06K 946
Patent
active
058728619
ABSTRACT:
A method of processing digital angiographic images which enables automatic detection of stenoses includes a tracking step for the identification of pixels or points situated on the central lines of vessels, and a step for the detection of stenoses by measurement of the intensity of pixels along the central lines of the vessels. The stenoses detection step includes a sub-step for deciding whether a pixel zone is a potential stenosis zone when the intensity of its pixels exhibits a local variation so as to assume an intermediate value between the intensity of the pixels to both sides of this zone and the intensity of the pixels of the image background, a sub-step for defining an icon around potential stenosis zones, and a sub-step for the extraction of the pixels of edges of the vessel segments in the icons.
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Au Amelia
Prikockis Larry J.
Renfrew, Jr. Dwight H.
Slobod Jack D.
U.S. Philips Corporation
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