Perception-based Evaluation of Illustrative Techniques & Medical Visualizations


Part I: Evaluation of illustrative techniques in a medical context

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Many illustrative techniques for visualizing medical volume data and derived segmentation information have been developed and refined. However, it is difficult to decide which techniques should be used for particular applications and how they should be combined. This project covers different controlled evaluations of illustrative visualization techniques applied to a medical context e.g. neck visualizations or cerebral aneurysms with embedded flow visualization. Therapeutic questions are used to evaluation techniques quantitatively and qualitatively e.g. lymphnode or blood flow assessment. In detail, we analyze the techniques ability to facilitate and support anatomy and pathological characteristics. The techniques are evaluated with respect to the participants accuracy, response time and their personal preferences according to the individual study. We generated the stimuli using 3D models of clinical datasets.


Part II: Perception-based evaluation of input and output devices

Besides the evaluation of illustrative techniques and parameter combinations, we investigate input and output devices e.g. autostereoscopic display, space pilot or haptic devices. Several projects compare 2D and autostereoscopic displays and analyze the perceptual benefit for medical visualizations. Participants have to answer therapeutic questions e.g. implant positioning or blood flow characterization (e.g. simple and complex vortex structures).

For Interested Students

If you are interested in working in this versatile and challenging topic feel free to visit our student offers subpage or contact us directly (see below). We offer “Hiwi”-jobs as well as “Laborpraktika / IT-Projekte” and various topics for your Bachelor or Master's Thesis/Diploma.

Contact

Name Dr.-Ing. Alexandra Baer
Adress Otto-von-Guericke-Universität Magdeburg
Fakultät für Informatik / ISG, PSF 4120
39016 Magdeburg
Phone (+49-391) 67-5 27 59
Fax (+49 391) 67-1 11 64

Images

Publications


Alexandra Baer, Kai Lawonn, Patrick Saalfeld, Bernhard Preim
Bildverarbeitung für die Medizin (BVM), pp. 71-76, 2015
BIBTeX
@INPROCEEDINGS{Baer_2015_BVM,
author = {Alexandra Baer and Kai Lawonn and Patrick Saalfeld and Bernhard Preim},
title = {{Statistical Analysis of a Qualitative Evaluation on Feature Lines}},
booktitle = {{Bildverarbeitung für die Medizin (BVM)}},
year = {2015},
pages = {71--76},
address = {Lübeck},
month = {März},
publisher = {Springer Verlag},
owner = {lawonn},
timestamp = {2015.01.19}
}
Kai Lawonn, Maria Luz, Bernhard Preim, Christian Hansen
International Conference on Medical Image Computing and Computer Assisted Intervention (MICCAI), pp. 399-406, 2015
BIBTeX
Media
@INPROCEEDINGS{Lawonn_2015_MICCAI,
author = {Kai Lawonn and Maria Luz and Bernhard Preim and Christian Hansen},
title = {{Illustrative Visualization of Vascular Models for Static 2D Representations}},
booktitle = {{International Conference on Medical Image Computing and Computer
Assisted Intervention (MICCAI)}},
year = {2015},
pages = {399--406},
address = {München},
month = {Oktober},
owner = {schumann},
timestamp = {2015.06.18}
}
Kai Lawonn, Noeska Smit, Bernhard Preim, Anna Vilanova
Eurographics Workshop on Visual Computing for Biology and Medicine (VCBM), pp. 103-112, 2015
BIBTeX
Media
@INPROCEEDINGS{Lawonn_2015_VCBM,
author = {Kai Lawonn and Noeska Smit and Bernhard Preim and Anna Vilanova},
title = {{Illustrative Multi-volume Rendering for PET/CT Scans}},
booktitle = {{Eurographics Workshop on Visual Computing for Biology and Medicine
(VCBM)}},
year = {2015},
pages = {103--112},
address = {Chester, UK},
month = {September},
owner = {schumann},
timestamp = {2015.09.18}
}
Illustrative Multi-volume Rendering for PET/CT Scans
Abstract?In this paper we present illustrative visualization techniques for PET/CT datasets. PET/CT scanners acquire both PET and CT image data in order to combine functional metabolic information with structural anatomical information. Current visualization techniques mainly rely on 2D image fusion techniques to convey this combined information to physicians. We introduce an illustrative 3D visualization technique, specifically designed for use with PET/CT datasets. This allows the user to easily detect foci in the PET data and to localize these regions by providing anatomical contextual information from the CT data. Furthermore, we provide transfer function specifically designed for PET data that facilitates the investigation of interesting regions. Our technique allows users to get a quick overview of regions of interest and can be used in treatment planning, doctor-patient communication and interdisciplinary communication. We conducted a qualitative evaluation with medical experts to validate the utility of our method in clinical practice.
Feature Lines for Illustrating Medical Surface Models: Mathematical Background and Survey
Kai Lawonn, Bernhard Preim
Visualization in Medicine and Life Sciences III, in print, 2014
BIBTeX
@INBOOK{Lawonn_2014_VMLS,
chapter = {Visualization in Medicine and Life Sciences III},
pages = {in print},
title = {Feature Lines for Illustrating Medical Surface Models: Mathematical
Background and Survey},
publisher = {Springer},
year = {2014},
editor = {Linsen, L. and Hamann, B. and Hege, H.-C},
author = {Kai Lawonn and Bernhard Preim}
}
Kai Lawonn, Alexandra Baer, Patrick Saalfeld, Bernhard Preim
Proc. of Vision Modeling and Visualization, pp. 31-38, 2014
BIBTeX
@INPROCEEDINGS{Lawonn_2014_VMV,
author = {Kai Lawonn and Alexandra Baer and Patrick Saalfeld and Bernhard Preim},
title = {{Comparative Evaluation of Feature Line Techniques for Shape Depiction}},
booktitle = {Proc. of Vision, Modeling and Visualization},
year = {2014},
pages = {31--38},
address = {Darmstadt},
month = {08.-10. Oktober},
owner = {lawonn},
timestamp = {2014.03.21}
}
Kai Lawonn, Rocco Gasteiger, Bernhard Preim
Bildverarbeitung für die Medizin (BVM), pp. 187-192, 2013
BIBTeX
@INPROCEEDINGS{Lawonn_2013_BVM,
author = {Kai Lawonn and Rocco Gasteiger and Bernhard Preim},
title = {{Qualitative Evaluation of Feature Lines on Anatomical Surfaces}},
booktitle = {{Bildverarbeitung für die Medizin (BVM)}},
year = {2013},
pages = {187--192},
owner = {schumann},
timestamp = {2013.02.11}
}
Alexandra Baer, Rocco Gasteiger, Douglas Cunningham, Bernhard Preim
Computer Graphics Forum (EuroVis), 30(3), pp. 811-820, 2011
BIBTeX
@ARTICLE{Baer_2011_Eurovis,
author = {Alexandra Baer and Rocco Gasteiger and Douglas Cunningham and Bernhard
Preim},
title = {{Perceptual Evaluation of Ghosted View Techniques for the Exploration
of Vascular Structures and Embedded Flow}},
journal = {{Computer Graphics Forum (EuroVis)}},
year = {2011},
volume = {30(3)},
pages = {811--820},
owner = {alexandra},
timestamp = {2011.05.04}
}
Alexandra Baer, Friederike Adler, Daniel Lenz, Bernhard Preim
Vision Modeling and Visualization Workshop (VMV), pp. 295-304, 2009
BIBTeX
@INPROCEEDINGS{Baer_2009_VMV,
author = {Alexandra Baer and Friederike Adler and Daniel Lenz and Bernhard
Preim},
title = {{Perception-based Evaluation of Emphasis Techniques Used in 3D Medical
Visualization}},
booktitle = {{Vision, Modeling, and Visualization Workshop (VMV)}},
year = {2009},
pages = {295--304},
address = {Braunschweig},
month = {November},
keywords = {VMV,d},
owner = {schumann},
timestamp = {2009.09.30}
}