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Friday, February 14, 2014

AutoFocus 3D\4D registrations:   in the Finetune part of the registrations, there were several parallelization levels built in, f.e a Parallel Amoeba.  However, running each thread in some scenarios, like liver registration, requires a lot of memory.  Also, except for Mutual Information, all other measures (incl URAL) are highly parallelized on the level of evaluating a single transform about the matching cost.

So parallelization was removed from Finetune, in non-MI measures. This led to a 18% speed up on 4D liver registration on Hersh's data.
FireVoxel Build 130A is released:

1. Fixed the crash, reported by Hersh: when Liver dataset is loaded, without ROI,   "Liver DCIDI>Register 4D" command crashes the application.
2. 4D Registration (Basic Candidate Construction stage):  Added the "time remaining" info displayed in real time in   min:sec format.
3. AutoFocus 4D Registration:  Re-engineered previous design that was creating a copy of the original 4D volume in memory, so it uses precisely half of the memory of the previous design.
4. Improved User Interface of the "Blood Vessel Segmenter" function specific for DCE.  User is NOT required any longer to scroll in time to the timepoint of the desired vessel peak.
5. Implemented function to find the Peak timepoint of the volume over the specified Vector ROI.  Exposed this function under "MainMenu>Volume>AdvanceTo" submenu.