Invited Talk by Lorenz König
Center for Brain Health
Department of Psychiatry
New York University Medical Center
- Date: Friday, June 29, 2012
- Time: 11:00 - 12:00
- Location: MI 03.13.010
On the Significance of Single Voxels: Edge Aberration and Sub-Voxel Segmentation in MRI
When analyzing raster images with respect to structures smaller than the voxel dimensions, it is of great importance to have a thorough understanding of the discretization of the image, hence the significance of single voxels.
As an example, direct application of conventional models for sub-voxel edge detection to modalities with intricate image formation like MRI results in systematic edge dislocations on a sub-voxel scale (edge aberration). However, by quantitative experimental analysis of this effect, a simple correction term can be calibrated, which is capable of improving edge localization precision to surpass voxel size by 2 orders of magnitude.
Starting from general considerations on image formation and focusing exemplarily on MRI, this talk explores the limits of local interpretation of raster images and points out possible solutions especially with regard to edge detection and segmentation.
| WebEventForm |
| Title: || Invited talk by Lorenz König |
| Date: || 29 June 2012 |
| Location: || MI 03.13.010 |
| Abstract: || Invited talk by Lorenz König from NYU Medical Center. |
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| Type: || News |
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