Search for dissertations about: "Lennart Thurfjell"

Found 3 swedish dissertations containing the words Lennart Thurfjell.

  2. 1. An Adjustable 3D Brain Atlas for Quantitative Analysis of Neuroimaging Data : Algorithmical and Methodological Aspects

    Author : Lennart Thurfjell; Ewert Bengtsson; Uppsala universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Datoriserad bildanalys; Computerized Image Analysis;

    Abstract : .... READ MORE

  4. 2. Segmentation and Visualisation of Human Brain Structures

    Author : Roger Hult; Ewert Bengtsson; Lennart Thurfjell; Håkan Hall; Ingrid Agartz; Arvid Lundervold; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Bildanalys; segmentation; visualisation; brain; cortex; hippocampus; autoradiography; MRI; PET; ROI; Bildanalys; Image analysis; Bildanalys; Computerized Image Analysis; datoriserad bildanalys;

    Abstract : In this thesis the focus is mainly on the development of segmentation techniques for human brain structures and of the visualisation of such structures. The images of the brain are both anatomical images (magnet resonance imaging (MRI) and autoradigraphy) and functional images that show blood flow (functional magnetic imaging (fMRI), positron emission tomography (PET), and single photon emission tomograpy (SPECT)). READ MORE

  5. 3. On Modelling Nonlinear Variation in Discrete Appearances of Objects

    Author : Felix Wehrmann; Ewert Bengtsson; Lennart Thurfjell; Fredrik Bergholm; Timothy Cootes; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Bildanalys; image analysis; shape description; nonlinear modelling; manifold reconstruction; auto-associative neural network; Bildanalys; Image analysis; Bildanalys;

    Abstract : Mathematical models of classes of objects can significantly contribute to the analysis of digital images. A major problem in modelling is to establish suitable descriptions that cover not only a single object but also the variation that is usually present within a class of objects. READ MORE