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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 <>
Submitted on : Monday, January 28, 2013 - 11:35:14 AM
Last modification on : Wednesday, October 7, 2020 - 6:36:02 PM
Contributor : Anne-Hélène Picot <>
Submitted on : Monday, January 28, 2013 - 11:35:14 AM
Last modification on : Wednesday, October 7, 2020 - 6:36:02 PM