Figure 7
From: A Novel Framework for Early Detection of Hypertension using Magnetic Resonance Angiography

Sample output of the local adaptive segmentation algorithm: (a) Original (raw) image, (b) After bias-correction, (c) After GGMRF-enhancement, (d) Distance map and iso-surfaces generated, (e) Subsurfaces-based extraction of brain tissues, (f) Final delineated cerebrovasculature (h) Initial LCDG global segmentation, (i) Results after applying the proposed local adaptive segmentation from the same plane, (j) and preceding and succeeding planes, and 3-D visualization of results using a growing tree model (k–m).