TY - GEN
T1 - Anomaly detection in non-stationary backgrounds
AU - Gorelnik, Nir
AU - Yehudai, Hadar
AU - Rotman, Stanley R.
PY - 2010/11/29
Y1 - 2010/11/29
N2 - In this paper, several algorithms are considered as solutions for detecting anomalies in images which are inherently nonstationary, i.e., the images contain more than one type of background. We conclude that a recent algorithm suggested by A. Schaum [1] is most successful when coupled with several variations which we suggest. In particular, in concurrence with Schaum, for pixels in transition zones between two neighboring stationary areas, it is crucial to choose or construct a covariance matrix which is appropriate for that particular area. Methods to choose both the sample covariance matrix and the estimated local mean will be discussed.
AB - In this paper, several algorithms are considered as solutions for detecting anomalies in images which are inherently nonstationary, i.e., the images contain more than one type of background. We conclude that a recent algorithm suggested by A. Schaum [1] is most successful when coupled with several variations which we suggest. In particular, in concurrence with Schaum, for pixels in transition zones between two neighboring stationary areas, it is crucial to choose or construct a covariance matrix which is appropriate for that particular area. Methods to choose both the sample covariance matrix and the estimated local mean will be discussed.
KW - Hyperspectral
KW - Subpixel point target detection
UR - http://www.scopus.com/inward/record.url?scp=78649313822&partnerID=8YFLogxK
U2 - 10.1109/WHISPERS.2010.5594914
DO - 10.1109/WHISPERS.2010.5594914
M3 - Conference contribution
AN - SCOPUS:78649313822
SN - 9781424489077
T3 - 2nd Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing, WHISPERS 2010 - Workshop Program
BT - 2nd Workshop on Hyperspectral Image and Signal Processing
T2 - 2nd Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing, WHISPERS 2010
Y2 - 14 June 2010 through 16 June 2010
ER -