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Non-rigid point set registration of curves: registration of the superficial vessel centerlines of the brain
KTH, School of Technology and Health (STH), Medical Engineering, Medical Image Processing and Visualization. Linköping Univ, Sweden.ORCID iD: 0000-0002-0442-3524
KTH, School of Technology and Health (STH), Medical Engineering, Medical Image Processing and Visualization. Linköping Univ, Sweden.ORCID iD: 0000-0002-7750-1917
2016 (English)In: MEDICAL IMAGING 2016: IMAGE-GUIDED PROCEDURES, ROBOTIC INTERVENTIONS, AND MODELING, SPIE - International Society for Optical Engineering, 2016, UNSP 978611Conference paper, Published paper (Refereed)
Abstract [en]

In this study we present a non-rigid point set registration for 3D curves (composed by 3D set of points). The method was evaluated in the task of registration of 3D superficial vessels of the brain where it was used to match vessel centerline points. It consists of a combination of the Coherent Point Drift (CPD) and the Thin-Plate Spline (TPS) semilandmarks. The CPD is used to perform the initial matching of centerline 3D points, while the semilandmark method iteratively relaxes/slides the points. For the evaluation, a Magnetic Resonance Angiography (MRA) dataset was used. Deformations were applied to the extracted vessels centerlines to simulate brain bulging and sinking, using a TPS deformation where a few control points were manipulated to obtain the desired transformation (T-1). Once the correspondences are known, the corresponding points are used to define a new TPS deformation(T-2). The errors are measured in the deformed space, by transforming the original points using T-1 and T-2 and measuring the distance between them. To simulate cases where the deformed vessel data is incomplete, parts of the reference vessels were cut and then deformed. Furthermore, anisotropic normally distributed noise was added. The results show that the error estimates (root mean square error and mean error) are below 1 mm, even in the presence of noise and incomplete data.

Place, publisher, year, edition, pages
SPIE - International Society for Optical Engineering, 2016. UNSP 978611
Series
Proceedings of SPIE, ISSN 0277-786X ; 9786
Keyword [en]
Non-rigid registration, brain shift correction, vessel registration
National Category
Medical Image Processing
Identifiers
URN: urn:nbn:se:kth:diva-192982DOI: 10.1117/12.2208421ISI: 000382315800036Scopus ID: 2-s2.0-84982111852ISBN: 978-1-5106-0021-8 (print)OAI: oai:DiVA.org:kth-192982DiVA: diva2:974345
Conference
Conference on SPIE Image-Guided Procedures, Robotic Interventions, and Modeling, FEB 28-MAR 01, 2016, San Diego, CA
Note

QC 20160926

Available from: 2016-09-26 Created: 2016-09-23 Last updated: 2016-09-26Bibliographically approved

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