摘要
提出了基于体绘制的三维交互算法。该算法将三维对象组织成为树状节点,并利用对象的三维骨架化特征为索引,快速计算三维坐标系中坐标时应的三维对象,从而解决了体绘制中缺乏有效的交互问题,且具有较高的响应速度,可对海量医学影像数据集进行操作。以该架构为基础建立的肝外科辅助手术规划系统,可交互显示肝段、血管等信息,使得医生能更准确的了解组织空间结构和解剖信息,精确的掌握病变组织特性。
The 3D interactive algorithm based on volume rending is introduced. In the algorithm ,3 D objects are organized as nodes of the tree structure,using the feature of 3D skeleton as an index,with the 3D object searched according to its 3D coordinates fast. The problem of the volume rending lacking of desirable interaetivity is effectively solved in a quick interactive speed, with mass medieal .image datasets pro- cessed. The information of liver segments and vessels can be interactively displayed by the liver surgery planning system built on this frame- work, helping surgeons more accurately obtain information about the size and shape of lesions, and the spatial relationship between lesions and surrounding tissues.
出处
《世界科技研究与发展》
CSCD
2013年第4期469-471,538,共4页
World Sci-Tech R&D
基金
国家科技支撑计划(2012BAI06B01)资助
关键词
体绘制
三维交互
三维骨架化
volume rending
3 D interaction
3 D skeletonization
