Parameter-Free Density Estimation for Hyperspectral Image Clustering
Abstract
This paper investigates multivariate kernel density estimation for hyperspectral data. More specifically, it focuses on designing a data-driven, parameter-free and fast estimator that is able to deal with clusters of different size, shape and density. We first propose a new criterion to compare density estimates, based on how evenly they treat the different classes in the data. In addition, we propose a simple, parameter-free and non-iterative kernel bandwidth selection approach. We show that it is substantially more adaptive than existing estimators on six remote sensing hyperspectral datasets. © 2018 IEEE.