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Bug 3014 - ft_prepare_mesh: functionality for calling isosurface on non-boolean volumes
| Status | NEW |
| Reported | 2015-11-25 12:45:00 +0100 |
| Modified | 2015-11-26 09:34:18 +0100 |
| Product: | FieldTrip |
| Component: | core |
| Version: | unspecified |
| Hardware: | PC |
| Operating System: | Windows |
| Importance: | P5 normal |
| Assigned to: | |
| URL: | |
| Tags: | |
| Depends on: | |
| Blocks: | |
| See also: |
Jan-Mathijs Schoffelen - 2015-11-25 12:45:16 +0100
This is the larger perspective on the issue encountered with Tom and Lau, where the 'isosurface' method (or more generally prepare_mesh_segmentation) by construction only works on boolean volumes, which leads to 'granular' meshes. The quick and dirty proposed fix (allowing for a last step smoothing of the boolean image prior to calling isosurface), has been discarded as a clean functionality. Rather, we should investigate the possibility to cleanly pass a 'probabilistic' segmentation (in Tom's and Lau's case, a probabilistic version of the scalp) to ft_prepare_mesh, and check whether the different methods are capable of working with this. If this would work, we keep the responsibility for creating a proper segmentation with the user (where admittedly FT's scalp-segmentation always yielding a boolean volume is suboptimal).