摘要
针对点云建模细节和逼真性不足的问题,提出一种基于树叶点云的逼真建模方法。首先,预处理树叶点云数据,然后,结合树叶点云数据映射的二维图像,提取树叶的边界点和叶脉点,在保留树叶点云数据边界点和叶脉点的基础上精简树叶原始点云,接着,对精简后的树叶点云数据进行Delaunay三角网格化,最后,基于网格模型对树叶点云数据进行逼真的颜色纹理映射。实验结果表明,该方法能够快速准确地重构出逼真的树叶模型。
In view of the problem of the lack of detail and fidelity of point cloud modeling, proposes a method that based on point cloud leaves pho- torealistic rendering. Firstly, preprocesses leaves point cloud data, then, combined with the two-dimensional image of the leaves point cloud data is mapped, leaves the boundary points and veins point extraction, while retaining leaves little cloud data boundary points and veins point based on streamlined leaves the original point cloud. Then, Delaunay triangulation of streamlined leaves point cloud data. Fi- nally, the leaves of point cloud data of vivid color texture mapping based on mesh model. Experimental results show that the method can quickly and accurately reconstruct the realistic leaf model.
基金
陕西省科技厅自然科学基金(No.2014JM8354)
陕西省教育厅重点实验室科技项目(No.13JS083)
关键词
点云
树叶
数据精简
纹理映射
Point Cloud
Leaves
Data Reduction
Texture Mapping
