Sökning: "Magnus Wilson"

Hittade 3 avhandlingar innehållade orden Magnus Wilson.

  1. 1. Appropriate Modelling Complexity: An Application to Mass Balance Modelling of Lake Vänern, Sweden

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Magnus Dahl; Lars Håkanson; David I Wilson; Gesa Weyhenmeyer; [2004]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Earth sciences; Lake Vänern; phosphorus; mass balance modelling; model complexity; Geovetenskap; NATURAL SCIENCES Earth sciences; NATURVETENSKAP Geovetenskap;

    Sammanfattning : This work is about finding an appropriate modelling complexity for a mass-balance model for phosphorus in Lake Vänern, Sweden. A statistical analysis of 30 years of water quality data shows that epilimnion and hypolimnion have different water quality and should be treated separately in a model. Further vertical division is not motivated. LÄS MER

  2. 2. Motion estimation and compensation in medical imaging

    Detta är en avhandling från Linköping : Linköpings universitet

    Författare :Magnus Hemmendorff; Roland Wilson; [2001]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICINE; MEDICIN;

    Sammanfattning : This dissertation presents a framework for estimation of motion fields in 2D images, 3D volumes and multi-dimensional signal registration. The primary application is motion compensation for sequences of medical images and volumes with contrast agents. LÄS MER

  3. 3. Manifolds in Image Science and Visualization

    Detta är en avhandling från Institutionen för medicinsk teknik

    Författare :Anders Brun; Hans Knutsson; Magnus Herberthson; Carl-Fredrik Westin; Roland Wilson; [2007]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; manifold learning; image analysis; signal processing; diffusion tensor mri; TECHNOLOGY Other technology Medical engineering; TEKNIKVETENSKAP Övriga teknikvetenskaper Medicinsk teknik;

    Sammanfattning : A Riemannian manifold is a mathematical concept that generalizes curved surfaces to higher dimensions, giving a precise meaning to concepts like angle, length, area, volume and curvature. A glimpse of the consequences of a non-flat geometry is given on the sphere, where the shortest path between two points – a geodesic – is along a great circle. LÄS MER