热带亚热带植被覆盖区的光学遥感云检测提取方法

黄飞, 王萧琼, 聂冠瑞, 颜军, 李先怡, 田家, 朱翠翠, 李前景, 田庆久

Optical remote sensing-based cloud detection and extraction method for tropical and subtropical vegetation areas

HUANG Fe, WANG Xiaoqiong, NIE Guanrui, YAN Jun, LI Xianyi, TIAN Jia, ZHU Cuicui, LI Qianjing, TIAN Qingjiu

表1 NDVI和NDWI光谱指数分割阈值特征点

Tab.1 Segmentation featwe points of threshold of NDVI and NDWI

阈值特征分割 水体 厚云 薄云 裸土 植被 NDVI阈值 [-0.7, 0.08) [0.08, 0.3) [0.3, 0.6) [0.6, 0.7) [0.7, 1] NDWI阈值 [-0.08, 0.1) [-0.17, -0.08) [-0.34, -0.17) [-0.43, -0.34) [-1, -0.43]