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FAQ
- Windows: Download vcredist_x64.exe and MI-Brain-.exe (both are available from the releases pages). Double-click on the vcredist_x64.exe to install the Microsoft Visual C++ 2015 Redistributable and then double-click on MI-Brain-.exe and follow the instructions
- Linux: In a terminal, extract the .tar.gz release archive and launch MI-Brain using MI-Brain.sh
- macOS: Open the .dmg file and drag the MI-Brain icon in the Application folder
- Windows: Uninstall the application like any other Windows application using (Start - Settings - Apps & Features - ...)
- Linux: Delete the folder containing the application
- macOS: Drag the application into the trash bin
- Windows: Delete
C:\Users\USER\AppData\Local\Imekaand/or start the application with/BlueBerry.clean - Linux: Delete
~/.local/share/Imekaand/or start the application with–BlueBerry.clean - macOS: Delete
~/Library/Application Support/Imekaand/or start the application with–BlueBerry.clean(the application is hidden in the app folderMI-Brain.app/Contents/MacOS/MI-Brain).
You need to be connected to the Internet only during the MI-Brain installation and if you want to get software update notices. Otherwise, it's perfectly fine to use MI-Brain offline.
The MI-Brain software works in LPS world coordinate as opposed to voxel mm coordinates (TrackVis, Fibernavigator). RAS data will be transformed to LPS internally. Make sure your data is aligned in world coordinates.
Peaks images are conceptually vector images in 3D. However, in practice, they are represented as 4D float images. MI-Brain would present them (Right-click on a node - Details...) as such:
Image Dimension: 4 Dimensions: width height depth (3 | 6 | 9 | 12 | 15) ComponentType: float
The 4th dimension is used to store the vectors. Each voxel contains from 0 to 5 3D-vectors (hence the multiple of 3). The data for a voxel is always packed in the form XYZXYZXYZXYZXYZ. The absence of information is declared with NANs or a zero-vector.
No. MI-Brain is a visualization/exploration software only. Imeka offers diffusion MRI processing services at https://imeka.ca/services. Contact us via info@imeka.ca for more details
Most of the algorithms in MI-Brain, such as streamline filtering and streamline cutting, are robust to compressed streamlines
Only if you bought a license from Imeka. To do so, please contact info@imeka.ca
Maybe. We have limited hardware resources and most of our users use Intel processors and NVIDIA graphic cards. Make sure to update your graphic card drivers to the latest version. Additionally, on Linux systems, we recommend using the closed source drivers instead of the Nouveau family of drivers.
No
We tested the software only on OS X 10.11 El Capitan and OS X 10.12 Sierra. It probably works on OS X 10.10 Yosemite too.
macOS tries to protect you from “unsafe” applications. To open the application, Cmd+Right-Click on MI-Brain icon - Open - Open
We mostly tested the software on Ubuntu 14.04, 16.04 and 18304 but it’s also known to work on most Debian derivatives. libpng12 is not pre-installed on Ubuntu 18.04, you need to do it yourself. You can download the .deb from this link and install it with the command: sudo dpkg -i libpng12-*.deb
MI-Brain is known to work on Windows 7, 8, 10 and 11.
This is not recommended and we don’t support it. MI-Brain relies heavily on the 3D capabilities of the graphic card and needs bare metal access.