基于局部曲率分布图的曲面自动配准  

Automatic surface registration based on regional curvature map

作　　者：杨珍[1] 孙军华[1] 张广军[1] 

机构地区：[1]北京航空航天大学精密光机电一体化技术教育部重点实验室,北京100191

出　　处：《光电子．激光》2010年第2期245-248,共4页Journal of Optoelectronics·Laser

基　　金：国家自然科学基金资助项目(50727502)

摘　　要：基于局部曲率分布图(RCM),提出了一种曲面自动配准方法。首先通过匹配RCM建立不同曲面间的匹配点对;然后在匹配点对中搜索满足几何约束的匹配点对子集,计算初始配准位置;最后用最近点迭代法对曲面做精确配准和验证。实验证明,该方法能有效地将扫描曲面自动配准,对曲面噪声不敏感,有较高的配准成功率和配准速率。An automatic surface registration method is developed based on Regional Curvature Map,an automatic surface registration method is developed.Matched point pairs between the two surfaces are established by matching RCMs,and the matched point pairs that satisfy the geometric constraints are selected to calculate the initial alignment transformation,which is fine-tuned by iterative closest point algorithm and verified.Experimental result shows that the proposed method can register two overlapping scanned surfaces effectively.It is efficient,robust to noise,and has a high successful rate.

关 键 词：曲面配准 点描述符 曲率 匹配点对 几何约束 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]