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# The ASTRA Toolbox
The ASTRA Toolbox is a MATLAB toolbox of high-performance GPU primitives for 2D and 3D tomography.
We support 2D parallel and fan beam geometries, and 3D parallel and cone beam. All of them have highly flexible source/detector positioning.
A large number of 2D and 3D algorithms are available, including FBP, SIRT, SART, CGLS.
The basic forward and backward projection operations are GPU-accelerated, and directly callable from MATLAB to enable building new algorithms.
## Documentation / samples
See the matlab code samples in samples/ and on http://sf.net/projects/astra-toolbox .
## Installation instructions
### Windows, binary
Add the mex and tools subdirectories to your matlab path.
### Linux, from source
Requirements: g++, boost, CUDA (driver+toolkit), matlab
```
cd build/linux
./configure --with-cuda=/usr/local/cuda \
--with-matlab=/usr/local/MATLAB/R2012a \
--prefix=/usr/local/astra
make
make install
```
Add /usr/local/astra/lib to your LD_LIBRARY_PATH.
Add /usr/local/astra/matlab and its subdirectories (tools, mex)
to your matlab path.
NB: Each matlab version only supports a specific range of g++ versions.
Despite this, if you have a newer g++ and if you get errors related to missing
GLIBCXX_3.4.xx symbols, it is often possible to work around this requirement
by deleting the version of libstdc++ supplied by matlab in
MATLAB_PATH/bin/glnx86 or MATLAB_PATH/bin/glnxa64 (at your own risk).
### Windows, from source using Visual Studio 2008
Requirements: Visual Studio 2008, boost, CUDA (driver+toolkit), matlab.
Note that a .zip with all required (and precompiled) boost files is
available from our website.
Set the environment variable MATLAB_ROOT to your matlab install location.
Open astra_vc08.sln in Visual Studio.
Select the appropriate solution configuration.
(typically Release_CUDA|win32 or Release_CUDA|x64)
Build the solution.
Install by copying AstraCuda32.dll or AstraCuda64.dll from bin/ and
all .mexw32 or .mexw64 files from bin/Release_CUDA or bin/Debug_CUDA
and the entire matlab/tools directory to a directory to be added to
your matlab path.
## References
If you use parallel beam GPU code for your research, we would appreciate it if you would refer to the following paper:
W. J. Palenstijn, K J. Batenburg, and J. Sijbers, "Performance improvements for iterative electron tomography reconstruction using graphics processing units (GPUs)", Journal of Structural Biology, vol. 176, issue 2, pp. 250-253, 2011.
## License
The ASTRA Toolbox is open source under the GPLv3 license.
## Contact
email: astra@uantwerpen.be
website: http://sf.net/projects/astra-toolbox
Copyright: 2010-2015, iMinds-Vision Lab, University of Antwerp
2014-2015, CWI, Amsterdam
http://visielab.uantwerpen.be/ and http://www.cwi.nl/
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