摘要
从肠道内窥检查中镜体模型重建的需要出发,介绍了基于曲率数据的曲线拟合方法.首先完成了从线应变到曲率的转换,以及从离散曲率到连续曲率的插值;然后用微分几何的方法,研究得出了三种基于曲率积分的曲线拟合方法;并在对这些拟合方法进行试算验证的同时,分析了拟合误差产生的原因,以及相应的减小拟合误差的若干措施.
This paper presents the curve-fitting methods based on the curvature data, to meet the requirement of the modei reconstruction of the endoscope. After the transformation from linear strain to curvature and the curvature linear interpolation, three methods based on curvature inte-gral are developed for curve fitting by means of the differential geometrv method. A test is carried out to validate the curve fitting methods and analyse the causes of errors. Finally some measures to reduce the fitting errors are suggested.
出处
《应用科学学报》
CAS
CSCD
2003年第3期258-262,共5页
Journal of Applied Sciences
基金
国家863计划(2001AA422180)
国家自然科学基金(50075050)资助项目
