基于气象雷达回波3D重建的Marching Cubes改进算法  

Improved Marching Cubes algorithm for echo data of meteorology radar

作　　者：王中科[1] 杨玲[2] 敬腊梅[1] 

机构地区：[1]成都信息工程学院网络工程系,四川成都610225 [2]成都信息工程学院电子工程系,四川成都610225

出　　处：《计算机工程与设计》2007年第17期4323-4324,F0003,共3页Computer Engineering and Design

摘　　要：根据气象雷达回波数据的三维极坐标分布特点,提出一种改进的Marching Cubes三维重建算法。该算法将March Cubes常规算法中的单位正立方体构建转换为直接对回波极坐标数据的拟柱体构建,生成相应的等值三角面,并对三角面顶点数据进行地曲订正,供OpenGL显示。为进一步提高重建算法的效率,该算法避免了对高仰角远距离无回波区的重建实验表明,该算法有效实现了雷达回波的三维重建。Based on three dimensional polar coordinated distributions of echo data of meteorology radar, an improved Marching Cubes reconstruction algorithm is proposed. In the algorithm, unit cubes of Marching Cubes general algorithm are replaced by imitated cylinders, and the data ofisosurface generated by the algorithm are corrected by earth curvature before showing with OpenGL. To further improve the algorithm, the non echo data areas with high elevation and long distance are not taken into consideration during reconstruction. The experiment shows the 3D reconstruction of echo data of radar are implemented effectively with the improved algorithm.

关 键 词：雷达回波 移动立方体 三维重建 拟柱体 地曲订正 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]