An automated method for the detection of emperor penguin colonies from Landsat 8 imagery

doi:10.1080/2150704X.2017.1306136

	An automated method for the detection of emperor penguin colonies from Landsat 8 imagery
	She, Xiao-Yi 1; Ke, Chang-Qing 1,2; Miao, Xin 3; Zhang, Xi 4; Zhang, Jie 4
刊名	REMOTE SENSING LETTERS
	2017
卷号	8 期号:6 页码:596-605
关键词	Emperor penguins colony normalized difference faeces index detection Landsat 8 Antarctica
ISSN号	2150-704X
DOI	10.1080/2150704X.2017.1306136
英文摘要	Detailed information on the emperor penguin colonies is crucial for estimating total populations and analysing population migration. This study presents a new method for detecting colonies of emperor penguins by identifying areas covered with their faeces using Landsat 8 data. Top of Atmosphere (TOA) reflectance and Brightness Temperature (BT) of Landsat images are used as inputs. This method first uses normalized spectral indexes (normalized difference water index (NDWI), normalized difference faeces index (NDFI), normalized difference snow index (NDSI)), band ratios and an individual band reflectance to produce probability masks for areas covered by faeces differentiating from other land cover types. Then, after eliminating those pixels that have abnormal elevations and performing a median filter, the probability masks for those areas covered by faeces are used to derive the corresponding polygons. Subsequently, the geometric centre of the polygons of those areas covered by faeces is used as the location for a corresponding colony. For a widely distributed set of data around the Ross and Somov Seas, the overall classification accuracy is as high as 91% with a small standard deviation of 0.12.
资助项目	Foreign Cooperation of Chinese Arctic and Antarctic Administration[IC201301]
WOS关键词	CLIMATE ; SNOW ; SEA
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:000398185100011
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/25459]
专题	自然资源部第一海洋研究所
通讯作者	Ke, Chang-Qing
作者单位	1.Nanjing Univ, Collaborat Innovat Ctr South China Sea Studies, Jiangsu Prov Key Lab Geog Informat Sci & Technol, Nanjing 210023, Jiangsu, Peoples R China 2.Nanjing Univ, Collaborat Innovat Ctr Novel Software Technol & I, Nanjing 210023, Jiangsu, Peoples R China 3.Missouri State Univ, Dept Geog Geol & Planning, Springfield, MO USA 4.State Ocean Adm, Inst Oceanog 1, Qingdao, Peoples R China
推荐引用方式 GB/T 7714	She, Xiao-Yi,Ke, Chang-Qing,Miao, Xin,et al. An automated method for the detection of emperor penguin colonies from Landsat 8 imagery[J]. REMOTE SENSING LETTERS,2017,8(6):596-605.
APA	She, Xiao-Yi,Ke, Chang-Qing,Miao, Xin,Zhang, Xi,&Zhang, Jie.(2017).An automated method for the detection of emperor penguin colonies from Landsat 8 imagery.REMOTE SENSING LETTERS,8(6),596-605.
MLA	She, Xiao-Yi,et al."An automated method for the detection of emperor penguin colonies from Landsat 8 imagery".REMOTE SENSING LETTERS 8.6(2017):596-605.