水土保持研究2013，Vol.20Issue(3)：115-119,124,6.
基于面向对象技术的黄土丘陵沟壑区切沟遥感提取方法研究
Study on Recognition of the Gully in Loess Hilly-Gully Region Based on Object-Oriented Technology
摘要
Abstract
Based on high resolution spatial image,this paper proposed a semi-automatic objected-based classification method to extract gully features using a combination of topographic,spectral,shape(geometric) and contextual information obtained from World View-2 data and a set of GLCMs metrics was calculated based on the flow direction.Taking the third auxiliary district of the loess hilly-gully area of Qiaozigou watershed of Tianshui in Gansu as a case,a rule-set was developed and tested on terrace,orchard,forest,road and gully.The classification results were evaluated by visual interpretation and field investigation which had promising accuracies,and the overall classification accuracy was 75.17％,the overall Kappa coefficient was 0.64,the producer accuracy of gully reached to 80％ and the user accuracy was 70.59％.关键词
切沟/高分辨率影像/面向对象半自动分类方法Key words
gully/ high resolution spatial image/ semi-automatic objected-based classification分类
信息技术与安全科学引用本文复制引用
李斌兵,黄磊..基于面向对象技术的黄土丘陵沟壑区切沟遥感提取方法研究[J].水土保持研究,2013,20(3):115-119,124,6.基金项目
国家自然科学基金资助项目(41171224) （41171224）
