摘要
本文提出了一种椭圆的直接拟合算法,它利用投影变换的原理,经过不同比例变换,最后得到椭圆的各项参数,无需进行测量数据的重心平移,最后用数据进行了算法的验证。
According to the principle of projection transform, a new method, called as direct fitting of ellipse is presented in this paper. The principle of multi-scale projection transform is used to obtain ellipse parameter. Barycenter displacement is eliminated by the mentioned method. The digital result shows that this method is practical.
出处
《工程勘察》
CSCD
北大核心
2007年第6期49-51,共3页
Geotechnical Investigation & Surveying
基金
同济大学博士学业研究基金(自选项目)
关键词
椭圆拟合
多项式
矩阵求逆
投影变换
重心平移
ellipse fitting
polynomial
matrix reverse
projection transform
barycenter displacement
