基于机载LiDAR数据和Landsat 8影像的芬兰北部泰加林—苔原过渡带提取
常潇月,荆林海,林沂

Extraction of the Taiga-tundra Ecotone in Northern Finland based on Airborne LiDAR Data and Landsat 8 Images
Xiaoyue Chang,Linhai Jing,Yi Lin
图2 图像梯度法示意图
Fig.2 Image gradient method schematic diagram