利用GPU加速的海量点云高效绘制

Efficient drawing of massive point cloud accelerated by GPU

针对地面三维激光雷达点云的特点,结合其在水工建筑三维建模、水利工程安全监测、边坡监测等水利工程应用中的共性问题,提出一种利用GPU加速的海量点云绘制算法。与基于Z-Buffer的点云绘制算法相比,提出的绘制算法适用于10GB级的点云绘制,绘制帧速最高增幅达到40%。

Aimed at the feature of radar point cloud of 3 D laser on land, combined with the general prob- lem in application of water conservancy such as 3 D modeling of hydraulic building, hydraulic safety and slope Monitoring etc, the paper proposed an efficient drawing algorithm of massive point cloud accelerated by GPU. The experiment proved that the algorithm can largely improve the drawing efficiency of massive point cloud ,handle 10GB point cloud and the largest increase value of drawing rate of the algorithm can reach as high as 40% compared with Z - Buffer algorithm.