摘要
目前,机载激光雷达数据的高程精度一般在10～20 cm,平面精度为0.5～1 m,所以大多学者和生产厂家关注高程精度较多,故而高程精度的评价方法相对成熟,而平面精度的评价方法则有待完善。本文介绍的几种方法,立足于实际工作中发现的问题,具体情况具体分析,旨在能寻求最接近平面精度真值的表达方法,为将来平面精度评价成熟而通用的方法寻求道路。
At present,the height accuracy of airborne LiDAR data generally is 10-20cm and the horizontal accuracy is about 0.5 1m,so most of the scholars and manufacturers are more concerned about the height accuracy,and therefore the height accuracy assessment method is relatively mature and the horizontal accuracy assessment method needs to be improved.Based on the problems found in the practical work,this paper describes several methods to work hard on the nearest expression of the true value of horizontal accuracy,and it has also been a road of seeking the common and mature method of the horizontal accuracy assessment in the future.
出处
《测绘与空间地理信息》
2013年第7期54-56,共3页
Geomatics & Spatial Information Technology
基金
江苏省测绘科研基金项目(JSCHKY201219)资助
