| 摘要 |
A volumetric data unfolding method includes applying a histogram based intensity classification to a volumetric data including an object of interest for identifying the object of interest and a material in the object of interest (101), segmenting the object of interest from the volumetric data (102), determining a centerline of the object of interest (103), casting a plurality of rays from the centerline to determine a surface of the object of interest (104), wherein the plurality of rays ignore the material in the object of interest, resampling the centerline at a plurality of sampling points along the plurality of rays, fitting the surface of the object of interest with B-splines using the sampling points to determine a B-spline surface (105), wherein topological noise is filtered, determining a feature of the B-spline surface to be preserved (106), and unfolding surface of the object of interest (107) to determine a planar surface while preserving the feature by determining coordinates for a plurality of vertices of the B-spline surface and mapping the surface of the B-spline surface to a planar surface, wherein an unfolded surface of the object of interest is displayed as a two-dimensional image. |
