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Position: Home > Articles > Cloud Detection and Removal Based on Multi-temporal MODIS Images Inner Mongolia Forestry Investigation and Design 2015,38 (6) 132-135+138

基于多时相MODIS影像的云检测和云去除算法

作  者:
王晓宇
单  位:
内蒙古自治区林业监测规划院
关键词:
MODIS;云检测;云去除
摘  要:
光学卫星遥感的成像经常受到云区的影响,导致云下像元信息被削弱甚至缺失,降低了遥感数据的利用率。针对多时相的MODIS影像,实现了基于云检测的"像元相对变化率云补偿"算法,并对实验结果进行目视评价和统计分析。结果表明,该方法对于检测出的云区,去除云和云影的效果都很好。然而,该方法的效果很大程度上取决于云检测算法的精度,因此,提高云检测算法的准确率很有必要。
译  名:
Cloud Detection and Removal Based on Multi-temporal MODIS Images
作  者:
WANG Xiao-yu;The Institute of Forestry Monitoring and Planning of Inner Mongolia Autonomous Region;
关键词:
MODIS;;cloud detection;;cloud removal
摘  要:
Imaging of optical remote sensing satellites is often affected by cloud area, leading to the pixel information under cloud to be weakened or even missing, reducing the utilization of remote sensing data. For multi-temporal MODIS images, the cloud removal algorithm named cloud compensation based on the rate of pixel relative change is completed, which is on the basis of the cloud detection. After experiments, we conducted visual evaluation and statistical analysis. The results show that the method is good to remove the cloud and cloud shadow for the detected cloud area. However, the effect of this method depends largely on the accuracy of cloud detection algorithm. Therefore, it's necessary to improve the accuracy of cloud detection algorithm.

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