2004
@inproceedings{RTR2004,
vgclass = {refpap},
vgproject = {cbir},
author = {Daniel B. Russakoff and Carlo Tomasi and Torsten Rohlfing
and Maurer Jr., Calvin R.},
title = {Image Similarity Using Mutual Information of Regions},
booktitle = {Proceedings of the Eighth European Conference on Computer
Vision (ECCV 2004)},
address = {Prague, Czech Republic},
pages = {596--607},
month = {May~11--14},
year = {2004},
url = {http://www.springerlink.com/link.asp?id=njkxc1dge358jfky},
abstract = {Mutual information (MI) has emerged in recent years as an
effective similarity measure for comparing images. One drawback of MI,
however, is that it is calculated on a pixel by pixel basis, meaning
that it takes into account only the relationships between corresponding
individual pixels and not those of each pixels respective neighborhood.
As a result, much of the spatial information inherent in images is not
utilized. In this paper, we propose a novel extension to MI called
regional mutual information (RMI). This extension efficiently takes
neighborhood regions of corresponding pixels into account. We
demonstrate the usefulness of RMI by applying it to a real-world
problem in the medical domain�intensity-based 2D-3D registration of
X-ray projection images (2D) to a CT image (3D). Using a gold-standard
spine image data set, we show that RMI is a more robust similarity
meaure for image registration than MI.},
}