基于MODIS数据的水体提取研究
he Water Bodies Extraction Research based on MODIS Images
通过分析遥感图像各类地物的光谱特征和水体在中等分辨率的EOS/MODIS上的波谱特征,确定水体最为明显的波段组合,研究如何从不同时期(枯水期、丰水期)的中等分辨率MODIS遥感影像提取水体的方法。实验表明:遥感图像经空间变换后再利用相同的方法提取的水体更容易区分水体和阴影,产生的噪声也少,提取的水体范围更准确、计算的水域面积精度更高,重点以武汉市的梁子湖为例对水体提取范围和精度进行了比较和分析。
By analyzing the future spectral characteristics and water spectral characteristics on the EOS/MODIS images, the distinguished water compound bands were decided to study the method to withdraw water area from different time of middle resolution remote sensing images. The last explanation shown that it was advantaged to extract the water area after the process of space transformation when we utilized the same method. The extracted water results shown less noises and exact water area boundary and high precision statistic of water area. Take the case of Liangzi Lake, it was given the precision result with two different methods and analysis errors probability.
马丹
水利工程基础科学
MODIS影像水体阈值色彩变换
MODIS imageswater bodythreshold valuecolor transform
马丹.基于MODIS数据的水体提取研究[EB/OL].(2006-09-20)[2025-07-16].http://www.paper.edu.cn/releasepaper/content/200609-285.点此复制
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