Abstract
Cone-beam computed tomography (CBCT) is an important image modality for dental surgery planning, with high resolution images at a relative low radiation dose. In these scans the mandibular canal is hardly visible, this is a problem for implant surgery planning. We use anisotropic diffusion filtering to remove noise and enhance the mandibular canal in CBCT scans. For the diffusion tensor we use hybrid diffusion with a continuous switch (HDCS), suitable for filtering both tubular as planar image structures. We focus in this paper on the diffusion discretization schemes. The standard scheme shows good isotropic filtering behavior but is not rotational invariant, the diffusion scheme of Weickert is rotational invariant but suffers from checkerboard artifacts. We introduce a new scheme, in which we numerically optimize the image derivatives. This scheme is rotational invariant and shows good isotropic filtering properties on both synthetic as real CBCT data.
Original language | English |
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Title of host publication | Medical Image Computing and Computer-Assisted Intervention – MICCAI 2010 |
Subtitle of host publication | 13th International Conference, Beijing, China, September 20-24, 2010: Proceedings |
Editors | Tianzi Jiang, Nassir Navab, Josien P.W. Pluim, Max A. Viergever |
Place of Publication | Berlin |
Publisher | Springer |
Pages | 221-228 |
Number of pages | 8 |
ISBN (Electronic) | 978-3-642-15711-0 |
ISBN (Print) | 978-3-642-15710-3 |
DOIs | |
Publication status | Published - 17 Sep 2010 |
Event | 13th International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2010 - Beijing, China, China Duration: 20 Sep 2010 → 24 Sep 2010 Conference number: 13 |
Publication series
Name | Lecture Notes in Computer Science |
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Publisher | Springer Verlag |
Volume | 6363 |
ISSN (Print) | 0302-9743 |
ISSN (Electronic) | 1611-3349 |
Conference
Conference | 13th International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2010 |
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Abbreviated title | MICCAI |
Country/Territory | China |
City | Beijing, China |
Period | 20/09/10 → 24/09/10 |
Keywords
- METIS-275683
- CBCT
- Cone Beam Computed tomography
- EWI-18677
- anisotropic Diffusion filtering
- Image Processing
- discretization scheme
- IR-74098