Fine spatial resolution coastline extraction from Landsat-8 OLI imagery by integrating downscaling and pansharpening approaches

doi:10.1080/2150704X.2017.1420928

CORC > 武汉植物园 > 中国科学院武汉植物园

	Fine spatial resolution coastline extraction from Landsat-8 OLI imagery by integrating downscaling and pansharpening approaches
	Liu, Yaolin 1,2; Ling, Feng 3; Xu, Shuna 1; Wang, Xia 1
刊名	REMOTE SENSING LETTERS
	2018
卷号	9 期号:4 页码:314-323
ISSN号	2150-704X
DOI	10.1080/2150704X.2017.1420928
英文摘要	Landsat series images are the main data resources used for coastline monitoring. However, the 30m spatial resolution of multispectral (MS) image is always dominated by mixed pixels around the coast areas. Given that the latest Landsat-8 Operational Lands Imager (OLI) imagery has a 15m panchromatic (PAN) band, it is instinctive to improve the coastline extracting accuracy by directly using the pansharpening approach. The spatial resolution of the sharpened MS image, however, may still not be sufficient in real applications, due to the meter-level spatial-temporal change of coastline. In this letter, a novel downscaling-then-pansharpening coastline extracting (DTPCE) approach is proposed to extract higher accuracy coastline from Landsat-8 OLI imagery. DTPCE first uses the radial basis function (RBF) method to downscale the 15m PAN band to a finer spatial resolution, and then produces a fine spatial resolution fused MS image by pansharpening of the downscaled PAN band and original MS bands. Finally, the fused MS image is used for coastline extracting. Comparing the extracted coastline with the reference coastline extracted from 5.8m ZiYuan-3 (ZY-3) MS image, DTPCE produced coastlines with the state-of-the-art representation in terms of both the visually and quantitatively analysis.
资助项目	National Key Research and Development Program of China[2017YFB0503505]
WOS研究方向	Remote Sensing ; Imaging Science & Photographic Technology
语种	英语
出版者	TAYLOR & FRANCIS LTD
WOS记录号	WOS:000424327400002
内容类型	期刊论文
源URL	[http://202.127.146.157/handle/2RYDP1HH/4611]
专题	中国科学院武汉植物园
通讯作者	Liu, Yaolin
作者单位	1.Wuhan Univ, Sch Resource & Environm Sci, Wuhan, Hubei, Peoples R China 2.Wuhan Univ, Key Lab Geog Informat Syst, Minist Educ, Wuhan, Hubei, Peoples R China 3.Chinese Acad Sci, Inst Geodesy & Geophys, Wuhan, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Liu, Yaolin,Ling, Feng,Xu, Shuna,et al. Fine spatial resolution coastline extraction from Landsat-8 OLI imagery by integrating downscaling and pansharpening approaches[J]. REMOTE SENSING LETTERS,2018,9(4):314-323.
APA	Liu, Yaolin,Ling, Feng,Xu, Shuna,&Wang, Xia.(2018).Fine spatial resolution coastline extraction from Landsat-8 OLI imagery by integrating downscaling and pansharpening approaches.REMOTE SENSING LETTERS,9(4),314-323.
MLA	Liu, Yaolin,et al."Fine spatial resolution coastline extraction from Landsat-8 OLI imagery by integrating downscaling and pansharpening approaches".REMOTE SENSING LETTERS 9.4(2018):314-323.