Title :
A fast-adaptive support vector method for full-pixel anomaly detection in hyperspectral images
Author :
Khazai, Safa ; Safari, Abdolreza ; Mojaradi, Barat ; Homayouni, Saeid
Author_Institution :
Dept. of Surveying & Geomatics Eng., Univ. Colleges of Eng., Tehran, Iran
Abstract :
The general objective of anomaly detection (AD) in hyperspectral imagery is to detect full-pixel targets. To meet this purpose, the global AD methods can achieve more reliable results than the local methods in terms of time and accuracy. The kernel-based Support Vector Data Description (SVDD) has recently received great attention in the hyperspectral AD applications. This paper presents a global SVDD-based method for autonomous full-pixel AD. The method consists of three steps: clustering, background modeling, and autonomous AD. Experimental results on a hyperspectral dataset show the superiority of the proposed method comparing to the global based SVDD method.
Keywords :
geophysical image processing; pattern clustering; support vector machines; autonomous AD method; background modeling; clustering method; fast adaptive support vector method; full pixel anomaly detection; hyperspectral AD application; hyperspectral imagery; kernel based support vector data description; Clustering algorithms; Hyperspectral imaging; Kernel; Real time systems; Support vector machines; Training; Anomaly detection; Full-pixel targets; Hyperspectral images; Support Vector Data Description (SVDD);
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2011 IEEE International
Conference_Location :
Vancouver, BC
Print_ISBN :
978-1-4577-1003-2
DOI :
10.1109/IGARSS.2011.6049461