摘要
卫星云图模拟是气象卫星成像仿真所研究的核心问题,针对快速生成效果逼真的卫星云图的要求,以分形理论为基础,设计了一种基于随机中点位移算法的云体数据生成模型,并采用光线投射算法将产生的三维云体数据绘制于二维平面图像上,实现了卫星云图的模拟,得到了比较满意的结果。
Satellite cloud image simulation is the core issue of meteorological satellite cloud imaging simulation. Aim at the needs of rapid generation of the lifelike satellite cloud images, a cloud data generation model based on random midpoint displacement algorithm of fractal theory is designed. Using raycasting algorithm, the three-dimensional cloud data are drawn on the two-dimensional graphic images. Satellige cloud image simulation is achieved and the results are satisfactory.
出处
《科学技术与工程》
2008年第1期101-105,共5页
Science Technology and Engineering
关键词
分形理论
随机中点位移算法
卫星云图模拟
光线投射算法
fractal theory random midpoint displacement algorithm satellite cloud image simulation raycasting algorithm
