Interpolation Algorithm for Motion Vector Field of CTA Image and Accelerated Implementation Based on Uniform Grid and Multi-level B-spline / 中国医疗器械杂志
Chinese Journal of Medical Instrumentation
;
(6): 131-135, 2021.
Article
in Chinese
| WPRIM
| ID: wpr-880438
ABSTRACT
In order to solve the problems of slow operation speed and low registration accuracy of thin plate spline (TPS) interpolation method for motion vector field in coronary computed tomography angiography (CTA), a multi-level B-spline interpolation method (MBS) with uniform grid is proposed. On the one hand, the interpolation method used local B-spline to refine the sparse mesh layer by layer in a multiscale way to improve the accuracy of registration. On the other hand, it used the splitting matrix method to interpolate the motion vector field, greatly reducing the operation time of interpolation. The experimental results show that the proposed method can be used for CTA image registration efficiently.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Algorithms
/
Tomography, X-Ray Computed
/
Computed Tomography Angiography
/
Heart
/
Motion
Type of study:
Prognostic study
Language:
Chinese
Journal:
Chinese Journal of Medical Instrumentation
Year:
2021
Type:
Article
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