Skip to main content
Figure 4 | BioMedical Engineering OnLine

Figure 4

From: Automatic segmentation of coronary angiograms based on fuzzy inferring and probabilistic tracking

Figure 4

Using the circular pattern detector to characterize the vessel structures, in the cases with bifurcation, paralleling, and crossing patterns. (a1)-(c1) are original images and the respective regions of interest. (a2)-(c2) are the corresponding direction maps overlaping with circular pattern detectors. (a3)-(c3) are the corresponding vessel-feature profiles on the circular template T (x,r,t). (a4)-(c4) are the corresponding magnitude profiles of the first-order derivative dT (x ,r,t).

Back to article page