Sökning: "interest point method"

Visar resultat 1 - 5 av 215 avhandlingar innehållade orden interest point method.

  1. 1. Interest Curves : Concept, Evaluation, Implementation and Applications

    Författare :Bo Li; Ulrik Söderström; Haibo Li; Björn Kruse; Umeå universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; scale-invariance; edge; corner; curve; line; matching; object detection; signalbehandling; Signal Processing;

    Sammanfattning : Image features play important roles in a wide range of computer vision applications, such as image registration, 3D reconstruction, object detection and video understanding. These image features include edges, contours, corners, regions, lines, curves, interest points, etc. LÄS MER

  3. 2. Potential Flow Panel Methods for the Calculation of Free-surface Flows with Lift

    Författare :Carl-Erik Janson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; desingularized; shape optimization; Rankine source; waves; OCTOPUS; dipole; MMA; Dawson operator; boundary layer; vortex; Method of Moving Asymptotes; nonlinear; sailing yacht; four point operator; surface piercing wing; Navier-Stokes; numerical method; lift force; raised panel method; discrete Fourier transform; collocation point shift; potential flow; CFD; free surface; induced drag; SHIPFLOW; dispersion; damping; analytical method; hydrofoil;

    Sammanfattning : Two non-linear Rankine-source panel methods are developed and implemented in the same computer code. The first method uses a four-point upwind operator on the free-surface to compute the velocity derivatives and to enforce the radiation condition while the second method uses an analytical expression for the velocity derivatives and a collocation point shift one panel upstream to prevent upstream waves. LÄS MER

  4. 3. Computational Techniques for Coupled Flow-Transport Problems

    Författare :Martin Kronbichler; Gunilla Kreiss; Jean-Luc Guermond; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Finite element method; saddle point systems; two-phase flow; level set method; phase field method; stabilization; contact line dynamics; Beräkningsvetenskap med inriktning mot numerisk analys; Scientific Computing with specialization in Numerical Analysis;

    Sammanfattning : This thesis presents numerical techniques for solving problems of incompressible flow coupled to scalar transport equations using finite element discretizations in space. The two applications considered in this thesis are multi-phase flow, modeled by level set or phase field methods, and planetary mantle convection based on the Boussinesq approximation. LÄS MER

  5. 4. Color Centers in Semiconductors for Quantum Applications : A High-Throughput Search of Point Defects in SiC

    Författare :Joel Davidsson; Igor A. Abrikosov; Rickard Armiento; Viktor Ivády; Giulia Galli; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; point defects; color centers; high-throughput; photoluminescence; zero phonon line; SiC;

    Sammanfattning : Point defects in semiconductors have been and will continue to be relevant for applications. Shallow defects realize transistors, which power the modern age of information, and in the not-too-distant future, deep-level defects could provide the foundation for a revolution in quantum information processing. LÄS MER

  7. 5. Verksamhetschefens etiska kompetens : Om identifiering och hantering av intressekonflikter i hälso- och sjukvården

    Författare :Erica Falkenström; Jon Ohlsson; T Anna Höglund; Håkan Thorsén; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Ethical competence; conflicts of interest; health care management; emotions; practical wisdom; organizational learning; purposive instrumental rationality; value belief-oriented rationality; Etisk kompetens; intressekonflikter; verksamhetschefer; hälso- och sjukvård; emotioner; praktisk visdom; organisatoriskt lärande; målrationalitet; värderationalitet; pedagogik; Education;

    Sammanfattning : While research concerning ethical competence in medical practice is frequent, ethical competence in health care management is less often studied. This thesis focuses ethical competence and its preconditions, particularly with regard to health care managers’ identification and handling conflicts of interest. LÄS MER