search

ilastik / hytra

Python module for multi HYpotheses TRAcking
https://github.com/ilastik/hytra
MIT License
2 stars 7 forks source link

merger resolving: Added relabelMergers() function to refine segmentation on Ilastik #6

Closed JaimeIvanCervantes closed 8 years ago

JaimeIvanCervantes commented 8 years ago

The relabelMergers() function was added, and is called from within opConservationTracking in Ilastik to request frames with refined merger segmentations.

chaubold commented 8 years ago

This definitely reduces the memory footprint, but it means relabelMergers() is run twice per frame. Unfurtunately, fitting GMMs (our current merger relabeling technique) is not deterministic, and so one might get out a tracking solution that doesn't necessarily fit to the images.

chaubold commented 8 years ago

We could add another method to our merger resolving plugin and use the fit that we have already computed and stored (we only use the fits of the previous frames here https://github.com/chaubold/hytra/pull/6/files#diff-060028ca83bd4e2a8b4f1914aed823f5R137). By doing so, we could simply not call GMM.fit() in https://github.com/chaubold/hytra/blob/development/hytra/plugins/merger_resolver/gmm_merger_resolver.py#L39 but only call GMM.predict() to reassign the pixels.