自动化学报Issue(8)：1412-1418,7.DOI:10.16383/j.aas.2015.c150014
一种新的虚拟血管镜自动导航路径生成方法
A New Automatic Navigation Path Generation Approach to Virtual Angioscopy
摘要
Abstract
Centerline extraction of curvilinear objects is a crucial component of virtual angioscopy because it provides path planning for automatic navigation. In this paper, we suggest a new idea to extract center path for point cloud data of cerebrovascular based on improved L1-media algorithm. First, the vessel segmentation algorithm based on statistics is applied to enhanced cerebrovascular. Then the promoted Roberts operator is used to extract single-voxel edge to generate a point cloud model of the vessel. At last, the L1-media algorithm based on point cloud normals is put forward to extract the wandering path. This process overcomes the limitations that the conventional wandering path extraction algorithms fail in outlier and missing data, improves efficiency and makes the wandering path closer to the medial axis of the vessel. The wandering path is the navigation path for angioscopy to achieve automatic navigation.关键词
血管分割/梯度算子/L1中值/骨架提取/血管内窥导航Key words
Vessel segmentation/gradient operator/L1-media/wandering path extraction/intravascular navigation引用本文复制引用
金朝勇,耿国华,李姬俊男,周明全,朱新懿..一种新的虚拟血管镜自动导航路径生成方法[J].自动化学报,2015,(8):1412-1418,7.基金项目
国家自然科学基金(61170203,61172170),陕西省自然科学基金(2014JQ8315),西北大学科学研究基金(12NW03)Supported by National Natural Science Foundation of China (61170203,61172170), Natural Science Grant of Xi0an Province (2014JQ8315), and Scientific Research Fund of Northwestern University (12NW03) （61170203,61172170）
