Sökning: "Utvidgad ensemble"

Hittade 2 uppsatser innehållade orden Utvidgad ensemble.

  1. 1. Generalized super-resolution of 4D Flow MRI : extending capabilities using ensemble learning

    Master-uppsats, Linköpings universitet/Institutionen för medicinsk teknik

    Författare :Adam Hjalmarsson; Leon Ericsson; [2023]
    Nyckelord :4D Flow MRI; Ensemble learning; Super-resolution; Machine learning; Neural networks; 4DFlowNet;

    Sammanfattning : 4D Flow Magnet Resonance Imaging (4D Flow MRI) is a novel non-invasive technique for imaging of cardiovascular blood flow. However, when utilized as a stand-alone analysis method, 4D Flow MRI has certain limitations including limited spatial resolution and noise artefacts, motivating the application of dedicated post-processing tools. LÄS MER

  3. 2. Computation of Effective Local Diffusion Tensor

    Master-uppsats, KTH/Fysik

    Författare :Viktor Pontéus; [2022]
    Nyckelord :Diffusion; Diffusion Tensor; Fokker-Planck; Coarse-graining; Extended Ensembles; Diffusion; Diffusionstensor; Fokker-Planck; Coarse-graining; Utvidgad ensemble;

    Sammanfattning : Numerical simulations of large complex systems such as biomolecules often suffer from the full description of the system having too many dimensions for direct numerical calculations and Monte Carlo methods having trouble overcoming energy barriers. It is therefore desirable to formulate a description in lower dimension which captures the system’s macroscopic behaviour. LÄS MER