 |
ECOLE SUPÉRIEURE D'ÉLECTRICITÉ Une grande école d'ingénieurs au cœur des sciences de l'information,de l'énergie et des systèmes |
 |
Conference papers
A class of Robust Estimates for Detection in Hyperspectral Images using Elliptical Distributions Backgroung
Abstract : When dealing with impulsive background echoes, Gaussian model is no longer pertinent. We study in this paper the class of elliptically contoured (EC) distributions. They provide a multivariate location-scatter family of distributions that primarily serve as long tailed alternatives to the multivariate normal model. They are proven to represent a more accurate characterization of HSI data than models based on the multivariate Gaussian assumption. For data in ℝk, robust proposals for the sample covariance estimate are the M-estimators. We have also analyzed the performance of an adaptive non- Gaussian detector built with these improved estimators. Constant False Alarm Rate (CFAR) is pursued to allow the detector independence of nuisance parameters and false alarm regulation.
https://hal-supelec.archives-ouvertes.fr/hal-00781727
Contributor : Anne-Hélène Picot Connect in order to contact the contributor
Submitted on : Friday, June 4, 2021 - 8:51:59 PM
Last modification on : Wednesday, October 20, 2021 - 3:33:57 AM
Long-term archiving on: : Sunday, September 5, 2021 - 9:06:59 PM
Contributor : Anne-Hélène Picot Connect in order to contact the contributor
Submitted on : Friday, June 4, 2021 - 8:51:59 PM
Last modification on : Wednesday, October 20, 2021 - 3:33:57 AM
Long-term archiving on: : Sunday, September 5, 2021 - 9:06:59 PM
File
frontera2012.pdf
Files produced by the author(s)