Work

Hyperspectral detection algorithms: use covariances or subspaces?

Year: 2009
Type: conference-paper
Abstract: There are two broad classes of hyperspectral detection algorithms.1, 2 Algorithms in the first class use the spectral covariance matrix of the background clutter; in contrast, algorithms in the second class characterize the background using a subspace model. In this paper we show that, due to the nature of hyperspectral imaging data, the two families of algorithms are intimately related. The link between the two representations of the background clutter is the low-rank of the covariance matrix of natural hyperspectral backgrounds and its relation to the spectral linear mixture model. This link is developed using the method of dominant mode rejection. Finally, the effects of regularization
Language: English
Open Access status: green
OpenAlex ID: W2095705397
FWCI: 1.641
Cites: 12
Cited by: 37
Related to: 10