结合强度信息的LIDAR数据滤波方法Airborne LIDAR data filtering combing intensity information
袁枫,张继贤,张力,高井祥
摘要(Abstract):
机载激光扫描系统可以直接生成扫描区域的数字表面模型,但是为了提取数字地面模型还须对LIDAR数据进行滤波处理。本文分析了用坡度法对机载LIDAR数据进行滤波的不足,并结合LIDAR数据中的强度信息,提出了一种结合强度信息的LIDAR数据滤波方法。与坡度法相比,该方法提高了滤波的精度和效率。试验结果表明该方法计算速度快,并能够有效地滤除LIDAR数据中的地物。
关键词(KeyWords): 机载LIDAR;数字地面模型;坡度;区域增长;强度信息
基金项目(Foundation): 国家自然科学基金(40871167)
作者(Author): 袁枫,张继贤,张力,高井祥
DOI: 10.16251/j.cnki.1009-2307.2010.05.004
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