Image analysis – Applications – Biomedical applications
Patent
1996-09-26
1998-06-16
Kelley, Christopher S.
Image analysis
Applications
Biomedical applications
382264, 382265, G06K 944
Patent
active
057684057
ABSTRACT:
Digital image processing method for local determination of the center and the width of objects in the form of contrasting bands on a background. A digital image processing method, for representation of objects in the form of contrasting bands of substantially uniform intensity on a substantially uniform background, includes a step for the identification of pixels situated on the central lines of the objects, which step is referred to as a "tracking" step. This method is characterized in that the step includes a first filtering operation which is executed by applying, to each image, a series of N lozenge-type-bidimensional, selective, recursive low-pass filters having respective ones of the principal directions angulary spaced apart 180.degree./N in order to determine the direction of each band-shaped object segment as that in which the response of one of the filters is maximum.
REFERENCES:
patent: 4503461 (1985-03-01), Nishimura
patent: 5210688 (1993-05-01), Cheu et al.
patent: 5297550 (1994-03-01), Margosian
patent: 5351305 (1994-09-01), Wood et al.
Kottke et al, "Segmentation of Coronary Arteriograms . . ." Aug. 1990, pp. 778-785.
"Automated Identification Of Vessel Contours In Coronary Arteriograms By An Adaptive Tracking Algorithm" Y. Sun, IEEE Trans. On Med. Imaging, vol. 8, No. 1, Mar. 1989, pp. 78-88.
"Coronary Artery Dimensions From Cineangiograms-Methodology And Validation Of A Computer--Assisted Analysis Procedure" R. Reiber et al, IEEE Trans. On Med. Imaging, vol. MI-3, Sep. 1984, pp. 131-141.
Optimization Of Morphological Structuring Elements for Angiogram Enhancement, S. Andress et al, SPIE vol. 1445, Image Processing (1991), pp. 6-10.
Kelley Christopher S.
Slobod Jack D.
U.S Philips Corporation
LandOfFree
Digital image processing method for local determination of the c does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Digital image processing method for local determination of the c, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital image processing method for local determination of the c will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1735800