直线与自由曲面求交的算法研究The Algorithm for Finding the Intersection between Line and a Free-form Surface
樊军,张晓帆
摘要(Abstract):
提出了一种直线与自由曲面中任意剖面求交的算法 ,通过对剖面生成时的采样、赋值的选择进行研究和试验并进行优化 ,解决了边缘模糊的问题 ;然后将直线与自由曲面剖面的立体求交转化为二维直线与曲线多边形求交的问题 ,使运算量减少 ,同时速度大大加快
关键词(KeyWords): 任意剖面;采样;赋值;体素;交点
基金项目(Foundation):
作者(Author): 樊军,张晓帆
参考文献(References):
- [1]RhodesML ,Glenn andAzzaiYM.Exrtacting oblique planes from serialCT Section[J].AssistedTomog-raphy,1980,4:646.
- [2]EihoS.A display sysytem for objects with there dimensional tomographic data[C].The proceding ofcomputer vision’90,1990.373-376
- [3]ParrottRW,et al.Towards statistically optimal interpolation for3D medical imaging[J].IEEE Engineer-ingMedicine andBiologySetember,1993(3).49-59.
- [4]HoudekP.et al.Stereotactic radiotherapy technique for small intracranial lesion[J].MedPhys,1985.12:469-472.
- [5]L utzW,WinstonKR andMalekiN.A system for stereotatic radiosurgery with linear accelerator[J].IntJRadiatOncol,BiolPhs,1988.(14):373-376