飞行模拟器动态地景库中纹理过渡算法

A Texture Transition Algorithm for Automatically Generate Terrain Database of Flight Simulator

针对传统方法构造地景数据库过程中存在的不足进行改进,提出了基于矢量数字地图建立地景数据库的方法,并对其中一种关键算法:二维地表纹理生成中异种纹理过渡算法进行了研究。提出以纹理颜色相似度为约束动态选取过渡区域宽度,实现异种纹理间自然过渡的纹理过渡算法。实验证明,该算法扩展了传统拼接算法的适用范围,解决了异种纹理拼接时接缝明显的问题,在保证了过渡后图像良好视觉效果同时,也提高了运算效率。

A view of the problem of traditional method in developing terrain database,propose an algorithm for found the terrain database with the vector digital map.One of the key algorithm：a terrain texture transition algorithm for generating two-dimensional terrain texture.A novel terrain texture transition algorithm is proposed,which can natural transition different terrain texture.Deciding the width of transition region with similar measure is based on improved color.The experiment indicate this algorithm not only expansion the scope of application of traditional stitching algorithm,and eliminate obvious seams at stitching,but also can acquire good visual effect with improving the running efficiency.