Name
Title | ||
|---|---|---|
Sufficient condition for local invertibility of spatio-temporal 4D B-spline deformations |
Abstract | ||
|---|---|---|
Recent advances in medical imaging technologies have made 4D image sequences available in clinical routine. As a consequence, image registration techniques are evolving from alignment of pairs of static volumetric images to spatio-temporal registration of dynamic (4D) images. Since the elastic image registration problem is ill-posed, additional prior information or constraints are usually required to regularize the problem. This work proposes to enforce local invertibility (diffeomorphism) of 4D deformations. A novel sufficient condition for local invertibility over continuous space and time is proposed and a practical regularization prior is designed from the theory. The method has been applied to an image registration (motion tracking) of a dynamic 4D CT image sequence. Results show that using proposed regularizer leads to deformations that are more plausible for respiratory motion than the standard approach without additional temporal regularization. |
Year | DOI | Venue |
|---|---|---|
2010 | 10.1109/ISBI.2010.5490215 | ISBI |
Keywords | Field | DocType |
optimisation,practical regularization,local invertibility,computerised tomography,motion tracking,diffeomorphism,temporal regularization,b-spline deformation,elastic image registration problem,image registration technique,sufficient condition,optimization,image sequences,spatio-temporal 4d b-spline deformations,additional temporal regularization,static volumetric image,image registration,additional prior information,4d deformation,respiratory motion,dynamic 4d ct image sequence,static volumetric images,medical image processing,ct image sequence,image motion analysis,biomedical imaging,interpolation,computed tomography,spline,inverse problems,tracking | Spline (mathematics),B-spline,Computer vision,Medical imaging,Computer science,Interpolation,Regularization (mathematics),Artificial intelligence,Match moving,Image registration,Diffeomorphism | Conference |
ISSN | ISBN | Citations |
1945-7928 E-ISBN : 978-1-4244-4126-6 | 978-1-4244-4126-6 | 2 |
PageRank | References | Authors |
0.45 | 10 | 3 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Se Young Chun | 1 | 72 | 18.18 |
| Colas Schretter | 2 | 21 | 5.46 |
| J. A. Fessler | 3 | 1743 | 229.34 |