小基高比立体测绘仿真与分析

发布时间：2018-07-02 20:30

本文选题：小基高比 + 立体测绘　；参考：《航天返回与遥感》2016年05期

【摘要】：在航天测绘时,小基高比立体测绘可以较好地避免大基高比的不利因素,有效减弱遮挡、辐射差异、几何畸变和阴影等因素对测绘精度的影响,在城市立体测绘中具有更多的优势。小基高比立体测绘需要对基高比数据值的优化设计进行研究,文章通过仿真分析了影响小基高比立体测绘高程精度的主要因素,搭建了不同密度和高度建筑物的场景,进行了不同基高比和噪声的仿真成像,最终结果表明,基高比、场景、遮挡以及噪声的不同均会对测绘精度产生影响;当地物目标高程越高、场景越复杂时,其最优基高比越小,而由噪声造成的误差越大。
[Abstract]:In space mapping, the three-dimensional mapping with small ratio of height to height can avoid the adverse factors of large ratio of height to height, and effectively weaken the influence of factors such as occlusion, radiation difference, geometric distortion and shadow on the precision of surveying and mapping. In urban three-dimensional mapping has more advantages. It is necessary to study the optimum design of the base height ratio data value in the small base height ratio stereo mapping. The main factors influencing the elevation precision of the small base height ratio stereo mapping are analyzed by simulation, and the scenes of different density and height buildings are built. The simulation results of different ratio of base height and noise show that the difference of base height ratio, scene, occlusion and noise will affect the precision of surveying and mapping, and the higher the height of local object, the more complex the scene. The smaller the optimal base height ratio is, the greater the error caused by noise is.
【作者单位】：北京空间机电研究所;
【基金】：国家重大科技专项工程
【分类号】：P236

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