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DOI	10.1117/12.2557894
	Investigating temporal distributions for spectral anomaly detection through time
	Simonoko, Hope; Ziemann, Amanda; Flynn, Eric
通讯作者	Ziemann, A (corresponding author), Los Alamos Natl Lab, Intelligence & Space Res Div, Los Alamos, NM 87545 USA.
会议名称	Conference on Algorithms, Technologies, and Applications for Multispectral and Hyperspectral Imagery XXVI
会议日期	APR 27-MAY 08, 2020
会议地点	ELECTR NETWORK
英文摘要	The Reed-Xiaoli (RX) detector is used for identifying spatial anomalies in multispectral imagery, which are pixels whose spectra are anomalous relative to other pixels in a scene. The distribution of the spectra in an image is used to represent the background, and the anomalies are the pixels whose spectra deviate statistically from this distribution. While RX is used to identify spatial anomalies, in this research we have instead developed a method to capture temporal anomalies, or fleeting changes, such as a music festival in the desert. Using the annual Burning Man festival as a test case, we use a time series of multispectral images and iterate through each pixel, drawing the \background distribution from a particular pixel location over time. Temporal RX (TRX) thus compares a pixel against itself through time, which enables us to capture normal seasonal trends and identify fleeting changes. We also describe a local window variant called Local Temporal RX (LTRX). Using k-means clustering and a new approach deemed Meta-RX, we investigate the nature of the temporal anomalies detected by TRX and LTRX to infer types and causes of change.
英文关键词	Multispectral Anomaly Detection RX Temporal RX
来源出版物	ALGORITHMS, TECHNOLOGIES, AND APPLICATIONS FOR MULTISPECTRAL AND HYPERSPECTRAL IMAGERY XXVI
ISSN	0277-786X
EISSN	1996-756X
出版年	2020
卷号	11392
ISBN	978-1-5106-3562-3
出版者	SPIE-INT SOC OPTICAL ENGINEERING
类型	Proceedings Paper
语种	英语
收录类别	CPCI-S
WOS记录号	WOS:000589972000019
WOS类目	Optics ; Imaging Science & Photographic Technology
WOS研究方向	Optics ; Imaging Science & Photographic Technology
资源类型	会议论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/337089
作者单位	[Simonoko, Hope; Ziemann, Amanda; Flynn, Eric] Los Alamos Natl Lab, Intelligence & Space Res Div, Los Alamos, NM 87545 USA
推荐引用方式 GB/T 7714	Simonoko, Hope,Ziemann, Amanda,Flynn, Eric. Investigating temporal distributions for spectral anomaly detection through time[C]:SPIE-INT SOC OPTICAL ENGINEERING,2020.