基于点云数据的非规则曲面重构与纹理映射研究

Research on Reconstruction of Irregular Surface and Texture Mapping Based on Point Cloud Data

利用FARO三维激光扫描仪获取非规则曲面物体的点云数据,研究了针对非规则曲面的点云数据预处理和三维重构方法,结合摄影测量共线方程得到点云纹理映射方法,采用角锥体法解决该方法中较难获取的外方位元素初值,最后结合工程实例,解决多张相片纹理映射出现的接缝问题。实验证明该方法切实可行,对模型的精细纹理映射具有一定参考价值。

This paper studied the method of point cloud preprocessing and 3D reconstruction based on the point cloud data of irregular surface which required by 3D laser scanner of FARO. And then, combining with collinear equation of photogrammetry, a texture mapping method was presented. At the same time, the initial values of elements of exterior orientation in the texture mapping method were resolved by pyramid principle. At last combining with engineering example, texture seam problem was resolved. Experimental results show the method is feasible and had a certain reference value to fine texture mapping of model.