The 2nd Canadian Conference on Computer and Robot Vision (CRV'05)
Resampling 4-D Images Using Adaptive Filtering
The University of Victoria, Victoria, British Columbia, Canada
May 09-May 11
ISBN: 0-7695-2319-6
We present an adaptive filtering based methodology for resampling 3-D time series images using an extension of the method presented by Westin in [Affine Adaptive Filtering of CT Data]. We simultaneously reduce the artifacts due to image noise and resample the data on a finer grid along the time dimension. This provides a methodology for obtaining high quality image resampling without the disadvantages of staircase artifacts created by more common interpolation methods such as linear interpolation. We present qualitative results of the algorithm on a data set of 4-D cardiac MRI. This is a useful approach for any situation where we have a data set of 4-D images needing to be resampled.