Abstract
In this paper, we propose an automated Euler's time-step adjustment scheme for diffeomorphic image registration using stationary velocity fields (SVFs). The proposed variational problem aims at bounding the inverse consistency error by adaptively adjusting the number of Euler's step required to realize the time integration. This particular formulation allows us to gain computationally since only relevant number of time steps are taken. We parameterize the SVFs using multi-scale Wendland kernels through the kernel bundle framework. In terms of performance, the proposed scheme reaches the same accuracy as a fixed time-step scheme however at a much less computational cost.
| Originalsprog | Engelsk |
|---|---|
| Titel | Biomedical Imaging (ISBI), 2015 IEEE 12th International Symposium on |
| Antal sider | 4 |
| Forlag | IEEE |
| Publikationsdato | 21 jul. 2015 |
| Sider | 1085-1088 |
| DOI | |
| Status | Udgivet - 21 jul. 2015 |
Emneord
- adaptive systems
- image registration
- medical image processing
- operating system kernels
- variational techniques
- SVF parameterization
- adaptive Euler step number adjustment
- automated Euler time-step adjustment
- automatic time-step adjustment
- computational cost reduction
- diffeomorphic image registration
- fixed time-step scheme
- inverse consistency error bounding
- kernel bundle framework
- multiscale Wendland kernel
- stationary velocity field
- time integration
- variational problem
- Accuracy
- Biomedical imaging
- Cost function
- Erbium
- Image registration
- Indexes
- Kernel
- Diffeomorphic Registration
- Euler's scheme
- Inverse consistency
- Kernel Bundle
- Wendland Kernels