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针对城市森林绿量估算研究不足的现状,该文提出了结合高分辨率航空遥感影像和车载激光扫描技术估算城市森林三维绿量的方法:首先从车载激光扫描数据中提取道路两侧单株树的生物物理参数,再结合从航空遥感影像中提取的植被分布,对均质城市森林片区进行三维绿量的拟合计算;最后以上海市滨江森林公园为例进行了方法验证。结果表明,该方法能够拓展车载激光扫描系统应用的领域,为城市绿化信息的获取提供参考。
Aiming at the status quo of urban green space estimation research, this paper presents a method of estimating urban green space by combining high resolution aerial remote sensing image and on-board laser scanning technology. Firstly, a single tree is extracted from vehicle laser scanning data Finally, taking the Shanghai Binjiang Forest Park as an example, the method validation is carried out. Finally, the spatial distribution of vegetation in the forest is analyzed. The results show that this method can expand the field of application of vehicle laser scanning system and provide reference for the acquisition of urban greening information.