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. Author manuscript; available in PMC: 2007 Sep 20.
Published in final edited form as: IEEE Trans Med Imaging. 2004 Nov;23(11):1380–1390. doi: 10.1109/TMI.2004.836869

Fig. 9.

Fig. 9

(a) CT slice at a particular position and the representation (blue) of the viewing direction of the virtual angioscope (CT acquisition parameters: 3 mm thickness slices, reconstructed every 1 mm, voxel size: 0. 24 × 0. 24 × 0.24 mm3 after interpolation). (b) Rendering showing the detected 3D surface points, the border points (red) and three virtual paths (green) computed automatically by virtual active navigation (SDT = 100 HU, FOV = 140°, MDS = 1, Nmax = 5,: starting point:P1, target points: E1, E2, E3). (c) Selected virtual angioscopy images with the representation of the border points (red).