测绘科学技术学报Issue(3)：271-276,6.DOI:10.3969/j.issn.1673-6338.2015.03.012
SAR影像时间序列支持下的互花米草盐沼提取--以江苏盐城东部沿海为例
Spartina alterniflora Salt Marshes Extraction Using SAR Image Time Series on the Eastern Coast of Yancheng, Jiangsu Province
摘要
Abstract
Based on the study area on the eastern coast of Yancheng, Jiangsu Province, eight scenes of ERS-2 SAR images were collected to construct pixel-level time series. Then training samples of Spartina alterniflora salt mar-shes were picked up to calculate standard time series. At last, Spartina alterniflora salt marshes were extracted ac-cording to DTW distance and the extraction results were evaluated by real ground data interpreted from Landsat TM image and CBERS-02B CCD image. The results show that:1) Time series of Spartina alterniflora salt marshes change fluctuatingly and are quite different from that of other four typical surface features. 2) The extraction accu-racy of Spartina alterniflora salt marshes is high on account of the correctness is 86.81% and completeness is 84. 63% according to Landsat TM image and the correctness is 87. 84% and completeness is 83. 87% according to CBERS-02B CCD image.关键词
SAR影像/时间序列/互花米草盐沼提取/DTW距离/精度评价Key words
SAR image/time series/Spartina alterniflora salt marshes extraction/DTW( Dynamic Time Warping) distance/precision evaluation分类
天文与地球科学引用本文复制引用
蒋洁,刘永学,钟礼山,李满春,孙超..SAR影像时间序列支持下的互花米草盐沼提取--以江苏盐城东部沿海为例[J].测绘科学技术学报,2015,(3):271-276,6.基金项目
国家自然科学基金项目(41171325；J1103408)；新世纪优秀人才支持计划项目(NCET-12-0264)。 （41171325；J1103408）
