Non-linear image registration

Lars Ruthotto*, Jan Modersitzki

*Corresponding author for this work
3 Citations (Scopus)

Abstract

mage registration is to automatically establish geometrical correspondences between two images. It is an essential task in almost all areas involving imaging. This chapter reviews mathematical techniques for nonlinear image registration and presents a general, unified, and flexible approach. Taking into account that image registration is an ill-posed problem, the presented approach is based on a variational formulation and particular emphasis is given to regularization functionals motivated by mathematical elasticity. Starting out from one of the most commonly used linear elastic models, its limitations and extensions to nonlinear regularization functionals based on the theory of hyperelastic materials are considered. A detailed existence proof for hyperelastic image registration problems illustrates key concepts of polyconvex variational calculus. Numerical challenges in solving hyperelastic registration problems are discussed and a stable discretization that guarantees meaningful solutions is derived. Finally, two case studies highlight the potential of hyperelastic image registration for medical imaging applications.

Original languageEnglish
Title of host publicationHandbook of Mathematical Methods in Imaging : Volume 1, Second Edition
Number of pages47
PublisherSpringer New York LLC
Publication date01.01.2015
Pages2005-2051
ISBN (Print)9781493907892
ISBN (Electronic)9781493907908
DOIs
Publication statusPublished - 01.01.2015

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