基于无人机高光谱影像的NDVI估算植被盖度精度分析
刘咏梅1,2(
), 范鸿建1, 盖星华1, 刘建红1,2, 王雷1,2
), 范鸿建1, 盖星华1, 刘建红1,2, 王雷1,2
Estimation accuracy of fractional vegetation cover based on normalized difference vegetation index and UAV hyperspectral images
LIU Yongmei1,2(), FAN Hongjian1, GE Xinghua1, LIU Jianhong1,2, WANG Lei1,2
), FAN Hongjian1, GE Xinghua1, LIU Jianhong1,2, WANG Lei1,2
图4. 不同波段位置和宽度下NDVI对植被盖度的灵敏度系数
(a) 波段位置固定,宽度扩展 (b) 位置在红光波段滑动,宽度扩展 (c) 位置在近红外波段滑动,宽度扩展
Fig.4. Sensitivity coefficient of NDVI about vegetation coverage at different band positions and widths
