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Chapter and Conference Paper
Functional Non-rigid Registration Validation: A CT Phantom Study
Validation of respiratory motion estimation is indispensable for a variety of clinical applications. For CT lung registration, current approaches employ manually defined landmark sets or contours and compute a...
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Chapter and Conference Paper
Evaluation of 4D-CT Lung Registration
Non-rigid registration accuracy assessment is typically performed by evaluating the target registration error at manually placed landmarks. For 4D-CT lung data, we compare two sets of landmark distributions: a...
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Chapter and Conference Paper
Variational Image Registration with Local Properties
In this paper we are concerned with elastic medical image registration. By spatially varying parameters, a displacement field can be reached which is adapted to local material properties. In addition, it enabl...
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Chapter and Conference Paper
Estimation of Organ Motion from 4D CT for 4D Radiation Therapy Planning of Lung Cancer
The goal of this paper is to automatically estimate the motion of the tumor and the internal organs from 4D CT and to extract the organ surfaces. Motion induced by breathing and heart beating is an important u...