ePrints.FRI - University of Ljubljana, Faculty of Computer and Information Science

Real-time visualization of medical volumetric datasets

Žiga Lesar (2014) Real-time visualization of medical volumetric datasets. Prešeren awards for students.

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    Our work discusses methods for real-time visualization of medical volumetric data sets, which can lead to faster and more reliable diagnostic processes. We have developed three visualization methods based on the ray casting algorithm: isosurface rendering, maximum intensity projection, and the emission-absorption model. We introduced two visual effects that enhance the final rendering: ambient occlusion and depth of field. We optimized the developed visualization methods for fast execution on graphics processing units and in the process introduced two novel methods: adaptive sampling and adaptive reconstruction, which contribute to faster rendering. We conducted a performance evaluation of the methods, which showed the efficiency of the implemented speed-ups and revealed the bottlenecks in the implementation. We also carried out a user evaluation study, where radiology specialists evaluated the practical suitability of the visualization methods.

    Item Type: Thesis (Prešeren awards for students)
    Keywords: visualization of medical data, angiography, ray casting, isosurfaces, emission-absorption model, OpenCL
    Number of Pages: 78
    Language of Content: Slovenian
    Mentor / Comentors:
    Name and SurnameIDFunction
    doc. dr. Matija Marolt271Mentor
    Link to COBISS: http://www.cobiss.si/scripts/cobiss?command=search&base=51012&select=(ID=1536136899)
    Institution: University of Ljubljana
    Department: Faculty of Computer and Information Science
    Item ID: 3686
    Date Deposited: 19 Dec 2016 10:12
    Last Modified: 09 Feb 2017 13:16
    URI: http://eprints.fri.uni-lj.si/id/eprint/3686

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