Remote sensing methods for power line corridor surveys

综述用于监测输电线路走廊（线路本身及周边植被）的遥感技术，涵盖卫星雷达、光学卫星和航空影像、热成像、机载激光扫描、移动测绘和无人机数据。导线提取是研究最多的任务，激光扫描或航空影像的报告精度超过 90%，但许多研究使用的数据集较小且缺乏数值化的质量分析。无人机被指出是一项发展迅速、值得更多关注的技术。

主要发现

• Automatic conductor extraction above 90% accuracy reported from laser scanning or aerial image data
• Many studies used small datasets and lacked numerical quality analysis
• Vegetation mapping near lines less studied, mostly with optical imagery
• Recommends multi-source data fusion and large realistic tests

局限

• Abstract only reviewed
• UAV results not quantified in the abstract; manned airborne LiDAR dominates the evidence base