摘要
介绍了不变矩的概念。结合实例,基于机载激光扫描测高的三维点云数据,用不变矩实现了规则房屋的模型重建。对不变矩重建房屋模型的精度进行了讨论和分析,得出了一些有益的结论。
The concept of invariant moments is given. Then on the basis of the shift invariant moment and rotation invariant moment, the formula of that how to calculate building model parameters is presented, and the coordinates of the feature points of the building are calculated using the parameters of building model. As shown in the examples in the paper, the building model is reconstructed from airborne laser altimetry points cloud data based on invariant moments. Finally, the accuracy of the method is discussed and analyzed.
出处
《武汉大学学报（信息科学版）》
EI
CSCD
北大核心
2006年第2期168-171,共4页
Geomatics and Information Science of Wuhan University
基金
国家自然科学基金资助项目(40504001)
关键词
机载激光扫描测高
不变矩
三维重建
airborne laser scanning altimetry
invariant moment
3D reconstruction
