Sökning: "level set method"

Visar resultat 1 - 5 av 418 avhandlingar innehållade orden level set method.

1. 1. Segmentation Methods for Medical Image Analysis : Blood vessels, multi-scale filtering and level set methods

   Författare :Gunnar Läthén; Reiner Lenz; Niels Christian Overgaard; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Image segmentation; Medical image analysis; Level set method; Quadrature filter; Multi-scale; Image analysis; Bildanalys;

   Sammanfattning : Image segmentation is the problem of partitioning an image into meaningful parts, often consisting of an object and background. As an important part of many imaging applications, e.g. face recognition, tracking of moving cars and people etc, it is of general interest to design robust and fast segmentation algorithms. LÄS MER

3. 2. Level Set Segmentation and Volume Visualization of Vascular Trees

   Författare :Gunnar Läthén; Reiner Lenz; Magnus Borga; Lasse Riis Østergaard; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; level set methods; image segmentation; edge detection; visualization; volume rendering; blood vessels; angiography; vascular trees;

   Sammanfattning : Medical imaging is an important part of the clinical workflow. With the increasing amount and complexity of image data comes the need for automatic (or semi-automatic) analysis methods which aid the physician in the exploration of the data. 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. A generic security evaluation method for open distributed systems

   Författare :Ann Frisinger; KTH; []
   Nyckelord :information security; security evaluation; risk analysis; method; ipen distributed system; virtual system; networked education; X-ify; NED-ify;

   Sammanfattning : Security is an important attribute of any informationsystem. Whether your business is small or large you have to beable to set the desired security levels for your system. Anon-decided or non-fulfilled security level target can easilyend up in unplanned costs. LÄS MER

7. 5. Industrial Experiences of Set-based Concurrent Engineering- Effects, results and applications

   Författare :Dag Raudberget; Staffan Sunnersjö; Lars Holmdahl; Jönköping University; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Engineering Design; New Product Development; Design Decisions; Set-based Concurrent Engineering; Set-based design; Lean Product Development; Design process; Development method;

   Sammanfattning : During product development, most of the customer value, as well as the cost and the quality of a product are defined. This key role of development in industry has led to an intense search for better ways to develop products, software, services and systems. LÄS MER