3d Wave Propagation and Traceback in Vascular Extraction
نویسندگان
چکیده
This paper presents an approach for the extraction of vasculature from a volume of Magnetic Resonance Angiography (MRA) images by using a 3D wave propagation and traceback mechanism. The method employs a dual-sigmoid filter to label each voxel in the MRA image volume with the likelihood that it is within a vessel. Resulting likelihood image is modeled as a medium, represented as an array of refractive indices, through which a wave may be propagated. Starting from the base of the vasculature, digital wave propagates through the medium and extracts vascular tree while washes over the local noise perturbations. * KeywordsWave propagation, traceback, vascular extraction, MRA
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