Paper Title:
Anomaly Detection in Hyperspectral Imagery Based on Spectral Gradient and LLE
  Abstract

The local linear embedding algorithm(LLE) is applied into the anomaly detection algorithm on the basis of the feature analysis of the hyperspectral data. Then, to deal with the problem of declining capacity of identifying the neighborhood caused by the Euclidean distance, an improved LLE algorithm is developed. The improved LLE algorithm selects neighborhood pixels according to the spectral gradient, thus making the anomaly detection more robust to the changes of light and terrain. Experimental results prove the feasibility of using LLE algorithm to solve the anomaly detection problem, and the effectiveness of the algorithm in improving the detection performance.

  Info
Periodical
Chapter
Chapter 2: Advanced Design Science (1)
Edited by
Dongye Sun, Wen-Pei Sung and Ran Chen
Pages
720-724
DOI
10.4028/www.scientific.net/AMM.121-126.720
Citation
L. L. Wang, Z. Y. Li, J. X. Sun, "Anomaly Detection in Hyperspectral Imagery Based on Spectral Gradient and LLE", Applied Mechanics and Materials, Vols. 121-126, pp. 720-724, 2012
Online since
October 2011
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$32.00
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