Distributed High Dimensional Information Theoretical Image Registration via Random Projections
Information Theory
2012-10-03 v1 Machine Learning
math.IT
Machine Learning
Abstract
Information theoretical measures, such as entropy, mutual information, and various divergences, exhibit robust characteristics in image registration applications. However, the estimation of these quantities is computationally intensive in high dimensions. On the other hand, consistent estimation from pairwise distances of the sample points is possible, which suits random projection (RP) based low dimensional embeddings. We adapt the RP technique to this task by means of a simple ensemble method. To the best of our knowledge, this is the first distributed, RP based information theoretical image registration approach. The efficiency of the method is demonstrated through numerical examples.
Cite
@article{arxiv.1210.0824,
title = {Distributed High Dimensional Information Theoretical Image Registration via Random Projections},
author = {Zoltan Szabo and Andras Lorincz},
journal= {arXiv preprint arXiv:1210.0824},
year = {2012}
}