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1)  normalized difference
归一化差值
1.
Ratio,difference,normalized difference of blue band and red band are calculated respectively,then bimodal distributing can be found in the image gray histogram,and then an adaptive threshold can be obtained using the maximum interclass variance method.
云的高精度检测是云量计算的基础,利用晴朗天空下天空呈蓝色、云呈白色的属性,该文提出一种基于最大类间方差的自适应阈值云检测方法,并分别基于蓝红波段比值、差值和归一化差值处理进行试验。
2)  normalized bias mean value
归一化误差均值
3)  normalization value
归一化值
4)  NDVI
归一化差值植被指数
1.
And on month,season,growing season and year time scales,correlation between climate factor images and NOAA/AVHRR NDVI data are computed.
同时,综合分析了归一化差值植被指数(normalized differential vegetation index,NDVI)、降水、气温、区域潜在蒸散量、区域实际蒸散量的年际季节变化。
2.
NDVI is an indicator of vegetation growth and its spatial distribution,with has a close relationship with climate conditions.
归一化差值植被指数(NDVI)是植被生长状态和空间分布的指示因子,区域气候对植被生长起着重要作用,两者具有密切的相互关系。
3.
Phenological observation data of plant communities from 1982 to 1996 at 5 sites and a method for phenological cumulative frequency modeling were used to determine the beginning dates of local phenological seasons and their corresponding threshold values of normalized difference vegetation index(NDVI) in each year.
利用1982~1996年5个站点的植物群落物候观测数据和物候累积频率拟合法,划分各站逐年的植被物候季节,并确定各季节初日对应的当地归一化差值植被指数(NDVI)阈值。
5)  Normalized value of sum-difference signal
和差信号归一化值
6)  normalized difference vegetation index (NDVI)
归一化差值植被指数(NDVI)
1.
The authors of the paper extracted the normalized difference vegetation index (NDVI) and the vegetation conditional ratio (VCR) from the MODIS images,and analyzed the relationship among NDVI,VCR and the measured data of groundwater of the same location in the research region.
从MODIS影像数据中提取归一化差值植被指数(NDVI)和条件植被覆盖率(VCR),并将其与研究区域内的相同空间位置实测地下水数据进行对比分析,在此基础上对黄河中上游区域适宜于植被生长的地下水位埋深进行了研究。
补充资料:归一
1.亦作"归壹"。 2.统一;一致。 3.犹规矩。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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