地面激光扫描中激光强度值的影响因素及改正方法  

Influence factors and correction methods of laser intensity value in terrestrial laser scanning

作　　者：谭凯[1] 程效军[1] 

机构地区：[1]同济大学测绘与地理信息学院,上海200092

出　　处：《测绘科学》2014年第9期98-101,120,共5页Science of Surveying and Mapping

基　　金：国家自然科学资金项目(40971241)

摘　　要：激光强度作为地面三维激光扫描仪特有的测量值,在现有三维激光扫描仪中并没有得到有效利用。鉴于此,文章从理论上推导了激光强度值的影响因素,根据强度值的影响因素提出了一种强度值的改正方法,并通过实验对理论模型进行了验证分析。实验结果表明:本文提出的改正方法能较好地对强度值进行改正,对相关的硬件制造和应用具有一定的价值。For the reason that the laser intensity value has not been effectively used in the existing ter- restrial 3D laser scanner, firstly, the factors of the laser intensity value were theoretically derived in the paper, then, according to the influencing factors of the intensity value, a correction method of intensity value was put forward. Finally, the experimental data was analyzed to verify the correctness of the theo- retical formula. The results showed that the correction method proposed in this paper could correct the in- tensity values and would be help to the related hardware manufacturing and application.

关 键 词：激光强度值 激光测距值 激光入射角 影响因素 改正方法 

分 类 号：P234.1[天文地球—摄影测量与遥感]