Sökning: "Ozan Öktem"

Hittade 3 avhandlingar innehållade orden Ozan Öktem.

1. 1. Extension of separately analytic functions and applications to mathematical tomography : characterizing the range of the exponential Radon transform

   Författare :Ozan Öktem; Slawomir Kolodziej; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; matematik; Mathematics;

   Sammanfattning : The principal problem that is dealt with in the thesis is to characterize the range of the exponential Radon transform for both constant attenuation and angle dependent attenuation (in the latter case we assume that the attenuation is a trigonometric polynomial). Such results are also of interest in applications such as ECT (Emission Computed Tomography). LÄS MER

3. 2. Data-driven Methods in Inverse Problems

   Författare :Jonas Adler; Ozan Öktem; Thomas Pock; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Inverse Problems; Machine Learning; Tomography;

   Sammanfattning : In this thesis on data-driven methods in inverse problems we introduce several new methods to solve inverse problems using recent advancements in machine learning and specifically deep learning. The main goal has been to develop practically applicable methods, scalable to medical applications and with the ability to handle all the complexities associated with them. LÄS MER

4. 3. Analytic and data-driven methods for 3D electron microscopy

   Författare :Gustav Zickert; Pär Kurlberg; Ozan Öktem; Timo Koski; Roy Lederman; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : The central theme of this thesis is theoretical and algorithmic aspects of 3D electron microscopy (3D-EM). In particular, the thesis explores three parts of this theme. The first part concerns analysis of forward operators that, compared to those traditionally used, better account for the wave properties of the imaging electron. LÄS MER