This repo is a companion to the article:
Oversampling errors in multimodal medical imaging are due to the Gibbs effect preprint
In order to repeat the experiments presented in such work you must have installed:
- ANTs
- FSL
- fresurfer
installed along w/ Python 3.x and the scikit-image, scipy and pandas libraries.
Then you can launch the resamplings by running bash all.sh in a Unix terminal.
To compute the errors you can run the get_errors_x.pynb notebooks, which (provided the enviromnent is identical to ours) will return the excel files
- VOI_oversampling.xlsx
- VOI_undersampling.xlsx
- pointwise_oversampling_DSSIM.xlsx
identical to the ones already in this repo.
The notebook "get_errors_pointwise_oversampling_error_bound_verify.ipynb" verifies the error bound given in the paper.
The notebook "Computing_Constants.ipynb" contains the (analytical) computation of the constants for the chosen basis functions.