Information
- Publication Type: Bachelor Thesis
- Workgroup(s)/Project(s):
- Date: November 2018
- Date (Start): 1. March 2018
- Date (End): 6. November 2018
- Matrikelnummer: 01429462
- First Supervisor: Eduard Gröller
Abstract
Volumetric visualization is an essential tool in medical studies and materials science, as it enables the analysis and exploration of the inner structure of objects. With the introduction of new equipment and techniques, the datasets become more complex, making it an increasingly common task in material analysis to handle three modalities at once. For instance, a single industrial computed-tomography scan of an object can
output absorption contrast, differential phase contrast and dark-field contrast volumes (modalities). However, modern software is falling behind with these advancements, as they still do not provide dedicated tools for this use. This thesis aims to test the feasibility of a transfer function user interface for tri-modal datasets, with a focus on usability, taking
into consideration the needs of material analysis experts. The development process (from the initial concepts to a software prototype) is described, and the resulting tool, developed as a module for open_iA (a visual analysis and volumetric processing application), is presented. It uses the standard 1D color-opacity transfer function for each modality together with a barycentric coordinates method to blend the three modalities together.
For the modalities of an industrial computed-tomography dataset (absorption contrast, differential phase contrast and dark-field contrast), the tool can successfully accelerate and facilitate volume exploration.
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BibTeX
@bachelorsthesis{Melo_2018_11,
title = "Transfer Function Widget for Tri-Modal Volume Exploration",
author = "Lucas da Cunha Melo",
year = "2018",
abstract = "Volumetric visualization is an essential tool in medical
studies and materials science, as it enables the analysis
and exploration of the inner structure of objects. With the
introduction of new equipment and techniques, the datasets
become more complex, making it an increasingly common task
in material analysis to handle three modalities at once. For
instance, a single industrial computed-tomography scan of an
object can output absorption contrast, differential phase
contrast and dark-field contrast volumes (modalities).
However, modern software is falling behind with these
advancements, as they still do not provide dedicated tools
for this use. This thesis aims to test the feasibility of a
transfer function user interface for tri-modal datasets,
with a focus on usability, taking into consideration the
needs of material analysis experts. The development process
(from the initial concepts to a software prototype) is
described, and the resulting tool, developed as a module for
open_iA (a visual analysis and volumetric processing
application), is presented. It uses the standard 1D
color-opacity transfer function for each modality together
with a barycentric coordinates method to blend the three
modalities together. For the modalities of an industrial
computed-tomography dataset (absorption contrast,
differential phase contrast and dark-field contrast), the
tool can successfully accelerate and facilitate volume
exploration.",
month = nov,
address = "Favoritenstrasse 9-11/E193-02, A-1040 Vienna, Austria",
school = "Institute of Computer Graphics and Algorithms, Vienna
University of Technology ",
URL = "https://www.cg.tuwien.ac.at/research/publications/2018/Melo_2018_11/",
}