A detection method for 3D circle fitting
Yingshu Li, Cccc Fourth · Cehui kexue · 2013
A simple method was put forward to fitting 3D circle in the paper. 3D circle could be viewed as great circle intersected by 3D ball and plane,and centre of the 3D circle must be on the vertical plane of any two points on the 3D ball,According to space vector,vertical plane could be derived to solve the centre with plane by conditional indirect adjustment,and then radius could be counted inversely. Meanwhile combined with a tunnel shield section detection project,this method was proved to be practical.