摘要
基于点云的几何测量方法是非接触式测量的重要方法。针对点云数据,提出了一种基于待定系数的二次曲面的几何测量方法,建立了求解不同二次曲面(球面、柱面和圆锥面)的统一框架。根据二次曲面方程与不同类型二次曲面几何量的关系,给出了球面、柱面和圆锥面的具体几何参数的求解方法。实验证明,该方法能在短时间内精确地测量所需的几何值,方法切实可行。
Geometry measurement based on point cloud is an important non-contact measurement method. A quadratic surface geometry measurement method was proposed based on undetermined co- efficients for point cloud data. A unified framework for solving quadratic surface （including spherical, cylindrical and conical surface） was established. According to the quadratic surface equation and the different types geometric parameters of quadratic surface, the solving methods for the specific geometric parameters of the spherical, cylindrical and conical surface were implemented. Experimental re- sults show that the method can measure the desired geometric parameters from point cloud data quickly and accurately, and it is a practical and feasible method.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2014年第11期1545-1549,共5页
China Mechanical Engineering
基金
国家自然科学基金资助项目(61075118)
浙江省自然科学基金资助项目(Y1100880)
关键词
二次曲面
几何测量
点云数据
待定系数
quadric surface
geometry measurement
point cloud data
undetermined coefficient
