Sökning: "sliding window reconstruction"

Hittade 2 uppsatser innehållade orden sliding window reconstruction.

1. 1. Reconstruction of challenging signatures characteristic to new physics beyond the Standard Model

   Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Högenergifysik

   Författare :Timmy Lindgren; [2020]
   Nyckelord :Reconstruction; Identification; photon-jets; ATLAS;

   Sammanfattning : A study of photon-jets and their identification variables computed in the electromagnetic calorimeter of an in-house, ATLAS-like, detector model developed at Uppsala University for full-simulations is presented. The signal, which is based on the Composite Higgs Model, considers the pair production of vector-like top quarks, denoted t', with the successive decays t' to S and a Standard Model top quark and S to two photons, where S is a new pseudo-scalar boson. LÄS MER

3. 2. Extracting Cardiac and Respiratory Self-Gating Signals from Magnetic Resonance Imaging Data

   Kandidat-uppsats, KTH/Skolan för teknik och hälsa (STH)

   Författare :Rebecca Hellström Karlsson; Tobias Peterson; [2015]
   Nyckelord :MRI; MR; magnetic resonance imaging; SG; self-gating; cardiac; cardiac MRI; sliding window reconstruction; motion artefacts; motion correction; 3D; signal filtering; MRI; MR; magnetisk resonanstomografi; SG; self-gating; hjärta; hjärt-MR; sliding window reconstruction; signalfiltrering; rörelseartefakter; rörelsekorrigering; 3D;

   Sammanfattning : Motion artefacts due to cardiac and respiratory motion present a daily challenge in cardiac Magnetic Resonance Imaging (MRI), and many different motion correction procedures are used in clinical routine imaging. To reduce motion artefacts further, patients are required to hold their breath during parts of the data acquisition, which is physically straining – especially when done repetitively. LÄS MER