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Fast 3D skeleton extraction of airways and applications to virtual bronchoscopy

机译:快速气道3D骨骼提取及其在虚拟支气管镜中的应用

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In this paper, a novel automatic approach of computing 3D skeletons of airways is introduced, which is based on optimized double distance transform field and endpoints detection. The advanced double distance transform fields are constructed by the fast marching method (FMM). The endpoints are detected automatically combining 3D SUSAN corner detector and the local extreme value of distance from source (DFS). Furthermore, the minimum cost path scheme is used for searching a connected, one voxel thickness flight path of airways in virtual bronchoscopy. Experimental results show that the proposed method is centered, less sensitive to object noisiness, more accurate and more efficient. We have validated the robustness of the proposed method both quantitatively and qualitatively against clinical datasets.
机译:本文介绍了一种基于优化的双距变换场和端点检测的新型自动计算气道3D骨架的方法。高级双距变换字段是通过快速行进方法(FMM)构造的。结合3D SUSAN拐角检测器和到源的距离的本地极值(DFS),可以自动检测到端点。此外,最小成本路径方案用于在虚拟支气管镜中搜索气道的连接的一个体素厚度飞行路径。实验结果表明,所提出的方法是居中的,对物体噪声不敏感,更准确,更有效。我们已经针对临床数据集定量和定性地验证了所提出方法的鲁棒性。

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