地面三维激光扫描点云角度分辨率研究

给出了点云角度分辨率近似等于扫描间隔和光斑直径大小的两种取值条件,以及该条件与测角精度的关系、理论最小角度分辨率与测角精度的关系,在此基础上推导出了它们的简化关系式,并利用推导的公式计算分析了29款扫描仪角度分辨率二种取值的条件及其理论最小角度分辨率大小,验证了公式的实用性。

Research on the Point Cloud Angular Resolution of Terrestrial Laser Scanners

In the present,the relationship between the resolution of theoretical minimum angle and the accuracy of angle measurement were not gived,the scanning interval constraint conditions which is used to obtain the angular resolution that equal to the scanning interval and spot diameter size is also presented.To resolve these problems,the relationship between the conditions of the angular resolution equal to the scanning interval and spot diameter size and quantification accuracy and the relationship between the resolution of theoretical minimum angle and quantification were deduced,at the same time,these simplified relationship formula was proposed.The constraint conditions and theoretical minimum angle resolution of 29 kinds of scaners is caculated.The conclusion have directly significance on the angular resolution’s calculation and the scanning interval setting.