Landmark Constrained Non-parametric Image Registration with Isotropic Tolerances

Nils Papenberg, Janine Olesch, Thomas Lange, Peter M. Schlag, Bernd Fischer


The incorporation of additional user knowledge into a nonrigid registration process is a promising topic in modern registration schemes. The combination of intensity based registration and some interactively chosen landmark pairs is a major approach in this direction. There exist different possibilities to incorporate landmark pairs into a variational non-parametric registration framework. As the interactive localization of point landmarks is always prone to errors, a demand for precise landmark matching is bound to fail. Here, the treatment of the distances of corresponding landmarks as penalties within a constrained optimization problem offers the possibility to control the quality of the matching of each landmark pair individually. More precisely, we introduce inequality constraints, which allow for a sphere-like tolerance around each landmark. We illustrate the performance of this new approach for artificial 2D images as well as for the challenging registration of preoperative CT data to intra-operative 3D ultrasound data of the liver.
Original languageEnglish
Title of host publicationBildverarbeitung für die Medizin 2009
EditorsHans-Peter Meinzer, Thomas Martin Deserno, Heinz Handels, Thomas Tolxdorff
Number of pages5
Place of PublicationBerlin, Heidelberg
PublisherSpringer Berlin Heidelberg
Publication date01.03.2009
ISBN (Print)978-3-540-93859-0
ISBN (Electronic)978-3-540-93860-6
Publication statusPublished - 01.03.2009
EventWorkshops Bildverarbeitung fur die Medizin 2009 - Heidelberg, Germany
Duration: 22.03.200925.03.2009
Conference number: 97568


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