一种改进的基于Facet模型的亚体素表面检测算法

被引：10

作者：

王凯

张定华

赵歆波

黄魁东

机构：

[1] 西北工业大学现代设计与集成制造技术教育部重点实验室

来源：

中国机械工程 | 2007年 / 03期

关键词：

工业CT; 表面检测; 亚像素级精度; 亚体素级精度; Facet模型;

D O I：

暂无

中图分类号：

TP391.41 [];

学科分类号：

080203 ;

摘要：

在基于CT的工业应用中,常常需要从CT切片序列获得实体的3D高精度表面信息。介绍了一种基于Facet模型的亚体素表面检测算法,并针对其计算效率低的问题,给出了一种3DFacet模型的加速算法。该改进算法将Facet模型的三维卷积核分解为3个一维卷积核,使算法复杂度从O(m3)降低到O(3m),并采用增量算法解决了由此产生的存储空间问题。通过对仿真图像的实验,验证了该算法的效率和精度,表明该算法在保持原始算法精度的同时,处理速度提高了约两倍。

引用

页码：343 / 347

页数：5

共 10 条

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