Real-time visualization of medical volumetric datasets

Žiga Lesar (2014) Real-time visualization of medical volumetric datasets. EngD thesis.

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Abstract

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 (EngD thesis)

Keywords:

visualization of medical data, angiography, ray casting, isosurfaces, emission-absorption model, OpenCL

Number of Pages:

Language of Content:

Slovenian

Mentor / Comentors:

Name and Surname	ID	Function
doc. dr. Matija Marolt	271	Mentor

Link to COBISS:

http://www.cobiss.si/scripts/cobiss?command=search&base=50070&select=(ID=00010773844)

Institution:

University of Ljubljana

Department:

Faculty of Computer and Information Science

Item ID:

2653

Date Deposited:

09 Sep 2014 15:38

Last Modified:

29 Sep 2014 08:29

URI:

http://eprints.fri.uni-lj.si/id/eprint/2653

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