江西科学2015，Vol.33Issue(5)：660-665,6.DOI:10.13990/j.issn1001-3679.2015.05.010
基于OLI影像的几种常用水体提取方法对比研究
Comparative Study of Several Common Water Extraction Methods Based on OLI Image
摘要
Abstract
This study took plain area and mountain area in Anhui province as an exsample and based on Landsat Oli image,comparatively studied from three aspects:discrimination,water error rate and area accuracy on the single-band threshold method,the multi-band spectral relationship method,ND-WI and other four normalized water indexes:MNDWI,EWI,CIWI and PRWI,to show accuracy rating of extracting water information. The results indicated that all of six methods can extact water informa-tion. But the single-band threshold method,MNDWI and PRWI are better at extracting water informa-tion from plain area. The multi-band spectral relationship method is better at extracting water infor-mation from mountain area. On area accuracy asprect,the single-band threshold method is the worst method of extracting water information of OLI image. MNDWI is the best method of extracting water information of OLI image.关键词
OLI影像/面向对象/水体指数/MNDWI指数Key words
OLI image/object-based imagery analysis/normalized water indexes/MNDWI分类
天文与地球科学引用本文复制引用
潘玥,张立亭..基于OLI影像的几种常用水体提取方法对比研究[J].江西科学,2015,33(5):660-665,6.基金项目
江西省自然科学基金项目(20132BAB201049) （20132BAB201049）
测绘地理信息江西省研究生创新教育基地项目. （）
