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
谭凯,程效军
摘要(Abstract):
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。
关键词(KeyWords): 激光强度值;激光测距值;激光入射角;影响因素;改正方法
基金项目(Foundation): 国家自然科学资金项目(40971241)
作者(Author): 谭凯,程效军
DOI: 10.16251/j.cnki.1009-2307.2014.09.019
参考文献(References):
- [1]Hfle B,Pfeifer N.Correction of laser scanning intensity data:Data and model-driven approaches[J].ISPRS Journal of Photogrammetry&Remote Sensing,2007,62(6):416-431.
- [2]Vain A,Kaasalainenet S,HyyppJ,et al.Calibration of laser scanning intensity data using brightness targets[J].Geodesy and Cartography,2009,35(3):77-81.
- [3]戴永江.激光雷达原理[M].北京:国防工业出版社,2002.
- [4]Pfeifer N,Dorninger P,Haring A,et al.Investigating terrestrial laser scanning intensity data:quality and functional relations[C].2007.
- [5]Kaasalainen S,Ahokas E,HyyppJ,et al.Study of surface brightness from backscattered intensity:calibration of laser data[J].IEEE Geoscience and Remote Sensing Letters,2005,2(3),255-259.
- [6]Woo H,Kang E,Wang S Y.A new segmentation method for point cloud data[J].Int J Mach Tool Manufacture,2002,42:167-178.
- [7]程效军,施贵刚,王峰,等.点云配准误差传播规律的研究[J].同济大学学报(自然科学版),2009,37(12):1668-1672.
- [8]谢瑞,胡敏捷,程效军,等.三维激光HDS3000扫描仪点位精度分析与研究[J].遥感信息,2008(06):53-57.
- [9]石银涛,程效军,张鸿飞.地面三维激光扫描建模精度研究[J].河南科学,2010,28(02):182-186.
- [10]Coren F,Sterzai P.Radiometric correction in laser scanning[J].International Journal of Remote Sensing,2006,27(15):3097-3104.
- [11]Cheng X J,Tan K,Lou Q Y.Relations of the Laser Intensity Value,the Laser Ranging Value and the Laser Incident Angle[J].Applied Mechanics and Materials,2013,239:198-201.