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- Title
基于Delaunay剖分的心内膜表面动态三维重建算法.
- Authors
付 饶; 陈日清; 黄迎松; 吴 剑
- Abstract
When applying surgery navigation and target positioning, the reconstruction of endocardium plays an important role in the 3 D mapping system. Given a set of unorganized endocardial points acquired in the surgery, this paper proposed a Delaunay based method to reconstruct the endocardial surface dynamically. The algorithm was based on the method of computing Delaunay triangulation with non-recursive provided by CGAL. During computing Delaunay triangulation, this algorithm used the umbrella incident to a sample point to replace the union of triangles in the surface that were against Gabriel property. Thus, the endocardial surface updated with the variation of Delaunay triangulation. In order to express the topological features of the reconstructed surface and 3 D Delaunay triangulation in the memory effectively, it designed a vtk Data Array-based data structure to help index the geometrical cells quickly. Finally, experiments show that this proposed algorithm can meet the clinical application of cardiology both in reconstruction results and reconstruction time.
- Publication
Application Research of Computers / Jisuanji Yingyong Yanjiu, 2018, Vol 35, Issue 10, p3113
- ISSN
1001-3695
- Publication type
Article
- DOI
10.3969/j.issn.1001-3695.2018.10.054