Had a meeting today with Yu-Shin:
1. Demonstrated new and improved registration  of 4D PET->MPRAGE but only for a low timepoint count.
2. For some reason the 202-timepoint PET registration failed, so I am troubleshooting that now.
3. More FireVoxel general fuctionality was demonstrated and explained.
4. Details of integrated Registration workflow were discussed, so the cropping, orientation change and registration are combined into a single operation.

Correcting the logic of automatically finding an optimal window\center for displaying the image for all kinds of volumes (i.e. Real and Integer). Problem is in 4D cases, only the 1st timepoint is evaluated to reduce the processing time. But first or any other timepoint might contain almost no signals thus leading to a non-sense settings and strangely displayed volume.

Added the progress indicator to Volume Crop UI-level functions.  These operations might be lengthy for very large volumes.