Sökning: "euclidean geometry"

Visar resultat 21 - 25 av 26 avhandlingar innehållade orden euclidean geometry.

  1. 21. Perceptually Motivated Constraints on 3D Visualizations

    Författare :Camilla Forsell; Mats Lind; Thomas Porathe; Uppsala universitet; []
    Nyckelord :Människa-dator-interaktion; Perception; 3D; Human-Computer Interaction; Information visualization; User studies; Människa-dator-interaktion;

    Sammanfattning : This thesis addresses some important characteristics of human visual perception and their implications for three-dimensional (3D) information visualization. The effort can be divided into two parts. First, findings from vision science are explored and validated. LÄS MER

  3. 22. Manifolds in Image Science and Visualization

    Författare :Anders Brun; Hans Knutsson; Magnus Herberthson; Carl-Fredrik Westin; Roland Wilson; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; manifold learning; image analysis; signal processing; diffusion tensor mri; Medical engineering; 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

  4. 23. Asymptotic and universal spectral estimates with applications in many-body quantum mechanics and spectral shape optimization

    Författare :Simon Larson; Ari Laptev; Stefan Steinerberger; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Spectral theory; shape optimization; semiclassical asymptotics; spectral inequalities; quantum mechanics; Mathematics; Matematik;

    Sammanfattning : This thesis consists of eight papers primarily concerned with the quantitative study of the spectrum of certain differential operators. The majority of the results split into two categories. LÄS MER

  5. 24. Optimal Decomposition in Real Interpolation and Duality in Convex Analysis

    Författare :Japhet Niyobuhungiro; Natan Kruglyak; Irina Asekritova; Fernando Cobos; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This thesis is devoted to the study of mathematical properties of exact minimizers for the K–,L–, and E– functionals of the theory of real interpolation. Recently exact minimizers for these functionals have appeared in important results in image processing. LÄS MER

  7. 25. Robust broadband beamforming and digital filter design : methods and applications

    Författare :Sven Nordebo; Luleå tekniska universitet; []
    Nyckelord :;

    Sammanfattning : This doctoral thesis consists of a summary and six parts corresponding to six different papers. There are two published and three submitted journal papers, and one research report. The summary will highlight the main results and emphasize the interrelationships between different parts. LÄS MER