| 基于MODIS数据的浒苔信息提取方法研究 |
| |
| 引用本文： | 刘振宇,江涛.基于MODIS数据的浒苔信息提取方法研究[J].测绘科学,2008(Z1). |
| |
| 作者姓名： | 刘振宇 江涛 |
| |
| 作者单位： | 山东科技大学测绘科学与工程学院遥感科学与技术系，山东科技大学基础地理与数字化技术山东重点实验室 |
| |
| 摘 要： | 浒苔是一种大型绿藻,大量浒苔爆发会严重影响景观,干扰旅游观光和水上运动的进行。本文利用NASA提供的MODIS02的250m分辨率影像,分别采用了比值法、归一化植被指数法和监督分类中的最小距离分类,提取了浒苔的信息,实验结果表明,三者都可以提取浒苔信息,但是比值法提取的结果最好,最小距离分类很难与薄云区分,必须加入人工目视解译,归一化植被指数可以区分出薄云,但是遗漏较多。
|
| 关 键 词： | 浒苔 归一化植被指数 比值法 最小距离分类 |
The resarch on the way of extracting Hu Moss on the basis of MODIS |
| |
| Abstract: | Hu moss is one type of large moss.Its breakout would adversely affects landscape,and tourism and interfere with the conduct of water spots.This paper used the MODIS02 images with the spatial resolution of 250m provided by NASA and used the way of RVI,NADVI and the minimum distance classification respectively to extract the information of Hu Moss.The result shows that all of them can extract the Hu Moss but the way of EVI is the best.The way of minimus distance can't identify between Hu Moss and cloud- y.We must classify the result on the basis of what we see.The way of NDVI can identify between Hu Moss and cloudy,but leak a lot. |
| |
| Keywords: | Hu Moss NDVI EVI minimum distance classification |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
