Coastline information extraction based on the tasseled cap transformation of Landsat-8 OLI images

被引:67
|
作者
Chen, Chao [1 ]
Fu, Jiaoqi [1 ]
Zhang, Shuai [2 ]
Zhao, Xin [3 ]
机构
[1] Zhejiang Ocean Univ, Marine Sci & Technol Coll, Zhoushan 316022, Zhejiang, Peoples R China
[2] Univ Massachusetts, Sch Environm, Boston, MA 02125 USA
[3] Shandong Univ Sci & Technol, Taishan Coll Sci & Technol, Tai An 271019, Shandong, Peoples R China
基金
中国国家自然科学基金;
关键词
Coastline information; Tasseled cap transformation; Accuracy assessment; Landsat-8; OLI; WATER INDEX; RIVER DELTA; TM; MORPHODYNAMICS; DERIVATION; FEATURES; MSS;
D O I
10.1016/j.ecss.2018.10.021
中图分类号
Q17 [水生生物学];
学科分类号
071004 ;
摘要
As a dynamic belt between land and oceans, coastline provides rich information on land-ocean interactions. Sensitive to climate and anthropogenic influences, the changing coastline affects intertidal mudflat resources and the coastal environment. In this study, the greenness and wetness components of the tasseled cap transformation (TCT) were used to extract coastline information. Due to the high total suspended sediment content that leads to the failure of traditional method, sea-waterbody information extraction was initially carried out by TCT. After considering the characteristics of coastline in remote sensing images and coastline morphology in the natural world, the coastline with shorter length was eliminated and the intermittent coastline was connected based on the coordinate geometry description (such as length, distance, and direction). Finally, the results of the coastline information extraction were superimposed on the original images to evaluate accuracy. The experimental results indicated that the proposed method was more effective in clearly delineating the land-ocean boundary, The producer's accuracy and user's accuracy were 0.95 and 0.91, respectively, and the length extraction error was -2.16%. Therefore, the proposed method was more successful for coastline information extraction in the area with high sediment concentration.
引用
收藏
页码:281 / 291
页数:11
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