Accurate Extraction of Vessel Bifurcations and Crossovers

Branching and crossover points in neuronal/vascular structures are of special interest from the standpoint of biology and medicine [9, 63]. One such application is the early diagnosis of hypertension by measuring changes in select vascular branching and crossover regions [82, 114]. Another example is the study of early development of the retinal vasculature, and its evolution under various pathologies and applied conditions [39, 77, 80,97,112].

Branching and crossover points are also important from a purely image analysis standpoint. The locations of these points, if known to be stable, are valuable as features (i.e., landmarks) for image registration and mosaicing [32,33,43,124]. The pattern of angles of intersection can be used as landmark signatures [9,10, 22,23].

Crucial to the performance of image registration algorithms is the accuracy and repeatability with which vascular crossing and branching locations (landmarks) can be extracted, more so than their absolute location [9]. The landmarks, when placed in correspondence, constrain the image-to-image transformation that must be estimated to register the images. Of particular interest, landmark repeatability plays two crucial roles: to reduce the number of possible correspondences between two images and accurately initialize a

Blood Pressure Health

Blood Pressure Health

Your heart pumps blood throughout your body using a network of tubing called arteries and capillaries which return the blood back to your heart via your veins. Blood pressure is the force of the blood pushing against the walls of your arteries as your heart beats.Learn more...

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