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Research software . Software . 2021

Gratopy 0.1 release candidate 1

Kristian Bredies; Richard Huber;
Open Access
English
Published: 19 Aug 2021
Publisher: Zenodo
Abstract
The Graz accelerated tomographic projection for Python (Gratopy) is a software tool for Python3 developed to allow for efficient, high quality execution of projection methods such as Radon and fanbeam transform. The operations contained in the toolbox are based on pixel-driven projection methods, which were shown to possess suitable approximation properties. The code is based in a powerful OpenCL/GPU implementation, resulting in high execution speed, while allowing for seamless integration into PyOpenCL. Hence this can efficiently be paired with other PyOpenCL code, in particular OpenCL based optimization algorithms. Highlights Easy-to-use tomographic projection toolbox. High-quality 2D projection operators. Fast projection due to custom OpenCL/GPU implementation. Seamless integration into PyOpenCL. Basic iterative reconstruction schemes included (Landweber, CG, total variation). Comprehensive documentation, tests and example code. Note that this is a pre-release.
Subjects

Radon transform, fanbeam transform, pixel-driven projection methods, computed tomography, image reconstruction

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