何云海,国巧真,乔悦,吴欢欢,朱丽

• 1:天津城建大学地质与测绘学院

摘要(Abstract)：

针对高空间分辨率卫星影像空间分辨率高、波段较少这一特点，该文以高分六号多光谱影像为数据源，通过分析各类地物的光谱特征曲线，建立了一种新指数。该指数通过增强植被和裸土信息，抑制不透水面信息来扩大不透水面和植被、裸土的差异，实现对不透水面的分离提取。验证阶段将该指数用于天津市河西区和河北省易县中心城区，并将提取结果与垂直不透水面指数(PISI)、比值居民地指数(RRI)的提取结果进行对比。结果表明：该方法在河西区和易县的提取效果都要优于PISI和RRI,并且两块实验区提取结果的总体精度分别为94.0%和91.7%,具有一定的稳定性。

关键词(KeyWords)： 指数;不透水面;遥感提取;阈值

Abstract:

Keywords:

基金项目(Foundation): 天津市教委科研计划项目(2018KJ164);; 天津市自然科学基金项目(18JCYBJC90900)

作者(Author): 何云海,国巧真,乔悦,吴欢欢,朱丽

DOI: 10.16251/j.cnki.1009-2307.2022.09.017

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