测绘通报 ›› 2018, Vol. 0 ›› Issue (5): 93-96.doi: 10.13474/j.cnki.11-2246.2018.0151

• 技术交流 • 上一篇    下一篇

利用“修改型”植被盖度反演模型提取辽西北沙化土地信息

张亚男, 王旭, 甄莹   

  1. 辽宁工程技术大学测绘与地理科学学院, 辽宁 阜新 123000
  • 收稿日期:2017-08-11 修回日期:2017-09-14 出版日期:2018-05-25 发布日期:2018-05-31
  • 作者简介:张亚男(1981-),女,博士生,讲师,研究方向为遥感数据分析与处理。E-mail:14559880@qq.com

Extraction of Desertification Land Information in the Northwest Area of Liaoning Province Using Modified Vegetation Coverage Inversion Model

ZHANG Yanan, WANG Xu, ZHEN Ying   

  1. School of Mapping and Geographical Science, Liaoning Technical University, Fuxin 123000, China
  • Received:2017-08-11 Revised:2017-09-14 Online:2018-05-25 Published:2018-05-31

摘要:

以辽西北为研究区域,选取2017年6月Landsat-8 OLI影像作为基本数据源,引入面向对象多尺度分割技术,利用水体指数、居民地指数、植被指数、形状指数相结合的二值逻辑运算方法提取出沙化土地信息。基于二阶抽样与遥感影像谱间结构相结合,构建“修改型”植被盖度反演模型,从而实现沙化土地信息的分等定级提取。研究结果表明:该方法可以排除提取地物时的干扰信息,实现沙化土地信息的自动、准确提取。

关键词: 辽西北, 面向对象, 二阶抽样, 植被盖度

Abstract:

Taking the northwest of Liaoning Province as the study area,from June of 2017 Landsat-8 OLI images as the basic data source, we introduce the object oriented multi-scale segmentation technique,combined with the use of the water index,residential index,vegetation index,shape index of two value logic method to extract information of land desertification.Based on the combination of two order sampling and remote sensing image structure,a modified vegetation coverage inversion model is constructed to realize the classification and extraction of desertification land information.The results show that this method can eliminate the disturbance information and realize the automatic and accurate extraction of the information of the desertification land.

Key words: northwest Liaoning province, object oriented, sampling of two order, vegetation coverage

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