Enhancing pure-pixel identification performance via preconditioning
Enhancing pure-pixel identification performance via preconditioning
In the scenario where pure pixels exist, pure-pixel search is well known to be a simple and effective approach for hyperspectral unmixing. However, in the noisy case, the performance of a pure-pixel search algorithm usually depends on the conditioning of the endmember matrix. This paper describes several data preconditioning methods …