Sökning: "Structure tensor"

Visar resultat 16 - 20 av 26 uppsatser innehållade orden Structure tensor.

  1. 16. Parallelization of the Estimation Algorithm of the 3D Structure Tensor

    Master-uppsats, Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE)

    Författare :Ashraful Alam; [2012]
    Nyckelord :;

    Sammanfattning : This thesis work provides the implementation of 3D structure tensor on a Massively Parallel Processor Array (MPPA), Ambric 2045.   The 3D structure tensor algorithm is often used in image processing applications to compute the optical flow or to detect local 3D structures and their directions. LÄS MER

  3. 17. Plasmonic Waveguides : Design and Comparative Study

    Master-uppsats, KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Författare :Yassin Chowdhury; [2011]
    Nyckelord :;

    Sammanfattning : Although photonics offers an attractive solution to the speed limitation of electronics, reducing the size of bulky photonic components is one of the major issues towards the implementation of photonic integrated circuits. Plasmonic circuits, which tightly confine electromagnetic waves at the metal-dielectric interface, can be a potential solution to this problem. LÄS MER

  4. 18. Navigation and Automatic Ground Mapping by Rover Robot

    Master-uppsats, Halmstad Embedded and Intelligent Systems Research (EIS)

    Författare :Xuerui Wang; Li Zhao; [2010]
    Nyckelord :Image mosaicing; Ground mapping; Robot positioning; Schwartz inequality; Texture orientation; Structure tensor; Linear symmetry;

    Sammanfattning : This project is mainly based on mosaicing of images and similarity measurements with different methods. The map of a floor is created from a database of small-images that have been captured by a camera-mounted robot scanning the wooden floor of a living room. We call this ground mapping. LÄS MER

  5. 19. Enhancement and Visualization of VascularStructures in MRA Images Using Local Structure

    Master-uppsats, Medicinsk informatik; Tekniska högskolan

    Författare :Morteza Esmaeili; [2010]
    Nyckelord :Adaptive Filtering; Tubular Structure; 3D Filter; Enhancement; Local Structure;

    Sammanfattning : The novel method of this thesis work is based on using quadrature filters to estimate an orientation tensor and to use the advantage of tensor information to control 3D adaptive filters. The adaptive filters are applied to enhance the Magnetic Resonance Angiography (MRA) images. LÄS MER

  7. 20. Direction estimation on 3D-tomography images of jawbones

    Magister-uppsats, Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE)

    Författare :Yuri Mazeyev; [2008]
    Nyckelord :image analysis; computer aided implantology; computed tomography; edge detection; bone density measurement;

    Sammanfattning : The present work expose a technique of estimation of optimal direction for placing dental implant. A volumetric computed tomography (CT) scan is used as a help of the following searches. The work offers criteria of the optimal implant placement direction and methods of evaluation on direction’s significance. LÄS MER