Feature #455
cardiacMRI
| Status: | New | Start date: | 2012-04-25 | |
|---|---|---|---|---|
| Priority: | Normal | Due date: | ||
| Assignee: | - | % Done: | 0% | |
| Category: | - | |||
| Target version: | - |
Description
(temporal fft operator now in opFFTxd.m in util directory)
- Problem setup is now kind of realistic:
- user choose upload cardiac images from dataset
- user can choose the slice number (1-10 - default is 5)
- sigma level (0.05 by default)
- undersampling factor (fold default is 6)
- n image size (256 by default)
- read 3d matrix of n*n cardiac images in szt time points
- adds noise sigma*var(signal)
- do 2d circular fft per image and take random lines as specified by mask
- mask is made to sample n*szt/fold lines in phase encode and time dimensions
- play movies of original, undersampled cardiac images and mask