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In this work, we apply Nonnegative Matrix Factorization (NMF) algorithms of the blind source separation methods to extract independent components from signals recorded at the output of fission chamber detector, which is used to perform the flux-mapping within the nuclear research reactors. The simulation of the recorded signals is based on using the python-based of Fission Chambers (pyFC) suite code,...
In this work, an effective technique to perform ultrasound image enhancement is presented. The algorithm proposed is based on the anisotropic diffusion equation of Perona and Malik (PM), and introduces a new implementation to determine the scale space parameter of the diffusion function in an adaptive manner and to ensure the convergence process. The adaptation is done according to the local intensity...
The simulation of a real experiment using a GATEmodeled clinical Positron Emission Tomography (PET) scanner, namely PHILIPS Allegro, has been carried out using the Moroccan computing Grid infrastructure, MaGrid. In order to reduce the computing time, the PET simulation tasks are split into several jobs submitted to the Grid to run simultaneously. The splitting technique and merging the outputs are...
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