三维激光扫描影像拼接模型及试验分析

从理论上推导了基于土木工程应用的三维激光扫描影像拼接模型，并提出了运用附有限制条件的间接平差模型解算拼接模型的数学方法．在试验研究中，通过三维激光影像扫描仪和全站仪采集了相应的试验数据，应用附有限制条件的间接平差模型算法进行了编程计算．同时还分析了考虑尺度因子的拼接模型的合理性．结果表明：拼接模型的解算方法合理有效；当设置的激光扫描脚点间隔为18mm时，激光扫描脚点间隔对拼接模型精度的影响显著．

Three-dimensional laser scanning image combination model and experimental analysis

With the test data collected by the three-dimensional laser image scanner and total station, the three-dimensional laser scanning image combination model was figured out by the indirect adjustment model with constraint condition. Meanwhile, the rationality of the combination model was discussed with the scale factor taken into account. The result shows that the method for solution of the combination model is reasonable and valid, and that the laser scanning granularity of 18mm is of great influences on the precision of the combination model.