TLS强度数据的入射角及距离效应改正方法
发布时间：2018-12-12 10:11
【摘要】：通过分离目标反射率、入射角及距离三个因素,利用Weierstrass定理,将激光强度表示成三个因素多项式函数的乘积形式,提出一种新的地面三维激光扫描(terrestrial laser scanning,TLS)激光强度改正模型。利用不同反射率的漫反射目标,设计入射角与距离实验,确定各个多项式的次数及系数,求取改正后激光强度值。实验结果表明,与现有改正模型进行比较,本文模型能精确地对激光强度值进行改正,并可以推广到自然目标强度数据的改正。
[Abstract]:By separating the three factors of target reflectivity, incidence angle and distance, and using Weierstrass theorem, the laser intensity is expressed as the product of polynomial function of three factors, and a new ground 3D laser scanning (terrestrial laser scanning, is proposed. TLS) laser intensity correction model. Using diffused reflectance target with different reflectivity, the experiment of incident angle and distance is designed, the degree and coefficient of each polynomial are determined, and the corrected laser intensity is obtained. The experimental results show that compared with the existing correction model, the proposed model can accurately correct the laser intensity value and can be extended to the correction of the natural target intensity data.
【作者单位】： 同济大学测绘与地理信息学院;香港理工大学土地测量与地理资讯学系;
【基金】：国土环境与灾害监测国家测绘地理信息局重点实验室开放基金(LEDM2014B05)~~
【分类号】：P225.2
本文编号：2374382
[Abstract]:By separating the three factors of target reflectivity, incidence angle and distance, and using Weierstrass theorem, the laser intensity is expressed as the product of polynomial function of three factors, and a new ground 3D laser scanning (terrestrial laser scanning, is proposed. TLS) laser intensity correction model. Using diffused reflectance target with different reflectivity, the experiment of incident angle and distance is designed, the degree and coefficient of each polynomial are determined, and the corrected laser intensity is obtained. The experimental results show that compared with the existing correction model, the proposed model can accurately correct the laser intensity value and can be extended to the correction of the natural target intensity data.
【作者单位】： 同济大学测绘与地理信息学院;香港理工大学土地测量与地理资讯学系;
【基金】：国土环境与灾害监测国家测绘地理信息局重点实验室开放基金(LEDM2014B05)~~
【分类号】：P225.2
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