Departmental Papers (BE)

Document Type

Conference Paper

Date of this Version

4-2010

Abstract

In this paper, we present a framework for extracting mutually-salient landmark pairs for registration. Traditional methods detect landmarks one-by-one and separately in two images. Therefore, the detected landmarks might inherit low discriminability and are not necessarily good for matching. In contrast, our method detects landmarks pair-by-pair across images, and those pairs are required to be mutually-salient, i.e., uniquely corresponding to each other. The second merit of our framework is that, instead of finding individually optimal correspondence, which is a local approach and could cause self-intersection of the resultant deformation, our framework adopts a Markov-random-field (MRF)-based spatial arrangement to select the globally optimal landmark pairs. In this way, the geometric consistency of the correspondences is maintained and the resultant deformations are relatively smooth and topology-preserving. Promising experimental validation through a radiologist’s evaluation of the established correspondences is presented.

Comments

Suggested Citation:
Ou, Yangming, Ahmed Besbes, Michel Bilello, Mohamed Manour, Christos Davatzikos, Nikos Paragios. "Detecting Mutually-Salient Landmark Pairs with MRF Regularization." 2010 IEEE International Symposium on Biomedical Imaging: From Nano to Micro. April 14-17, 2010. Rotterdam, The Netherlands.

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Keywords

Landmark Detection, Landmark Matching, Image Registration, MRF, Mutual-Saliency

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Date Posted: 23 July 2010

This document has been peer reviewed.