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当前位置: 首页 > 文章 > 一种NDWI自约束遥感影像水体信息的快速检测方法 石河子大学学报(自然科学版) 2020 (1) 128-132
Position: Home > Articles > Fast water detection in remote sensing images by NDWI self-constrained method Journal of Shihezi University(Natural Science) 2020 (1) 128-132

一种NDWI自约束遥感影像水体信息的快速检测方法

作  者：
刘怀鹏;安慧君;方明
单  位：
洛阳师范学院国土与旅游学院;内蒙古农业大学林学院
关键词：
多光谱影像;水体信息;归一化水体指数;自约束模型;快速检测
摘  要：
针对传统遥感影像水体信息检测环节多、过程复杂的问题,本文提出一种基于归一化水体指数(NDWI)自约束的水体判别方法,该方法直接从影像中检测水体,能减少操作环节、提高检测速度,为水体应急监测提供快速响应的方法。通过对本方法与阈值法、分类法在不同数据中进行测试,结果显示:本方法对World View-2、Landsat8和Sentinel-2A影像水体检测的总体精度介于83. 87%～91. 53%,阈值法检测的总体精度介于85. 07%～94. 07%,支持向量机分类法检测的总体精度介于91. 91%～97. 70%;该方法对水体的检测精度不及阈值法和分类法高,但在具有较高检测精度的同时能明显简化操作,在水体监测应急响应中具有实际应用价值。
译  名：
Fast water detection in remote sensing images by NDWI self-constrained method
作  者：
LIU Huaipeng;AN Huijun;FANG Ming;School of Land and Tourism,Luoyang Normal University;College of forestry,Inner Mongolia Agricultural University;
关键词：
multispectral images;;water body information;;normalized difference water Index;;self-constrained model;;rapid detection
摘  要：
Aiming at the problems of multi-link and complex process of water detection in traditional remote sensing images,this paper proposed a water body identification method based on NDWI self-restraint,which detected water body directly from images,reduces operation links and improves detection speed.It can provide rapid response for emergency monitoring of water body.NDWI self-restraint method,threshold method and classification method were used to test in different data. The results showed that the overall accuracy of NDWI self-restraint method was between 83. 87% and 91. 53% for water detection of World View-2,Landsat8 and Sentinel-2 A images,the overall accuracy of threshold method was between 85. 07% and 94. 07%,and the overall accuracy of support vector machine classification was between 91. 91% and 97. 70%.The overall accuracy of NDWI self-restraint method for water body detection was not as high as threshold method and classification method,but it can greatly simplify the operation while having a high detection accuracy,and has application value in emergency response of water detection.

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