激光雷达数据辅助的FY-3D影像阈值自适应云检测方法

张宇卓,李志伟,沈焕锋,彭小元

Threshold Adaptive Cloud Detection for FY-3D Images Using CALIPSO Data as Reference

Yuzhuo Zhang,Zhiwei Li,Huanfeng Shen,Xiaoyuan Peng

表1 阈值优化所确定的最优阈值

Table 1 Optimal thresholds acquired by threshold optimization

海洋场景 陆地场景 HOT >0.11 >0.11 VBR >0.45 >0.40 NDSI N/A >-0.3 & <0.59 Rred >0.06 >0.06 R1.38μm >0.001 N/A R1.03μm >0.05 N/A BT11 <290 K N/A BT7.2-BT11 >-29 K N/A BT3.8-BT11 >6.5 K N/A BT8.6-BT11 >-1 K N/A