liu.seSearch for publications in DiVA
Change search
Link to record
Permanent link

Direct link
BETA
Publications (10 of 44) Show all publications
Ljung, P., Krueger, J., Groeller, E., Hadwiger, M., Hansen, C. D. & Ynnerman, A. (2016). State of the Art in Transfer Functions for Direct Volume Rendering. Paper presented at 18th Eurographics/IEEE VGTC Conference on Visualization. Computer graphics forum (Print), 35(3), 669-691
Open this publication in new window or tab >>State of the Art in Transfer Functions for Direct Volume Rendering
Show others...
2016 (English)In: Computer graphics forum (Print), ISSN 0167-7055, E-ISSN 1467-8659, Vol. 35, no 3, p. 669-691Article in journal (Refereed) Published
Abstract [en]

A central topic in scientific visualization is the transfer function (TF) for volume rendering. The TF serves a fundamental role in translating scalar and multivariate data into color and opacity to express and reveal the relevant features present in the data studied. Beyond this core functionality, TFs also serve as a tool for encoding and utilizing domain knowledge and as an expression for visual design of material appearances. TFs also enable interactive volumetric exploration of complex data. The purpose of this state-of-the-art report (STAR) is to provide an overview of research into the various aspects of TFs, which lead to interpretation of the underlying data through the use of meaningful visual representations. The STAR classifies TF research into the following aspects: dimensionality, derived attributes, aggregated attributes, rendering aspects, automation, and user interfaces. The STAR concludes with some interesting research challenges that form the basis of an agenda for the development of next generation TF tools and methodologies.

Place, publisher, year, edition, pages
WILEY-BLACKWELL, 2016
National Category
Human Computer Interaction
Identifiers
urn:nbn:se:liu:diva-130665 (URN)10.1111/cgf.12934 (DOI)000379912300060 ()
Conference
18th Eurographics/IEEE VGTC Conference on Visualization
Available from: 2016-08-20 Created: 2016-08-19 Last updated: 2018-11-20
Ynnerman, A., Rydell, T., Persson, A., Ernvik, A., Forsell, C., Ljung, P. & Lundström, C. (2015). Multi-Touch Table System for Medical Visualization. In: Eurographics 2015: Dirk Bartz Prize. Paper presented at Eurographics 2015. Eurographics - European Association for Computer Graphics
Open this publication in new window or tab >>Multi-Touch Table System for Medical Visualization
Show others...
2015 (English)In: Eurographics 2015: Dirk Bartz Prize, Eurographics - European Association for Computer Graphics, 2015Conference paper, Published paper (Other academic)
Abstract [en]

Medical imaging plays a central role in a vast range of healthcare practices. While the usefulness of 3D visualizations is well known, the adoption of such technology has previously been limited in many medical areas. This paper, awarded the Dirk Bartz Prize for Visual Computing in Medicine 2015, describes the development of a medical multi-touch visualization table that successfully has reached its aim to bring 3D visualization to a wider clinical audience. The descriptions summarize the targeted clinical scenarios, the key characteristics of the system, and the user feedback obtained.

Place, publisher, year, edition, pages
Eurographics - European Association for Computer Graphics, 2015
National Category
Other Medical Engineering Human Computer Interaction
Identifiers
urn:nbn:se:liu:diva-130543 (URN)10.2312/egm.20151030 (DOI)
Conference
Eurographics 2015
Available from: 2016-08-15 Created: 2016-08-15 Last updated: 2018-01-10
Srinivasan, S., Ljung, P., McDermott, B. A. & Smith-Casem, M. M. (2013). Adaptive volume rendering for ultrasound color flow diagnostic imaging. Google Patentsus 8,425,422.
Open this publication in new window or tab >>Adaptive volume rendering for ultrasound color flow diagnostic imaging
2013 (English)Patent (Other (popular science, discussion, etc.))
Place, publisher, year, edition, pages
Google Patents, 2013
National Category
Other Computer and Information Science
Identifiers
urn:nbn:se:liu:diva-119051 (URN)
Patent
US 8,425,422
Note

US Patent 8,425,422

Available from: 2015-06-11 Created: 2015-06-08 Last updated: 2018-01-11
McDermott, B. A., Smith-Casem, M. M., Ljung, P. & Wiesner, S. (2013). Animation for conveying spatial relationships in three-dimensional medical imaging. us 8,494,250.
Open this publication in new window or tab >>Animation for conveying spatial relationships in three-dimensional medical imaging
2013 (English)Patent (Other (popular science, discussion, etc.))
National Category
Other Computer and Information Science
Identifiers
urn:nbn:se:liu:diva-119048 (URN)
Patent
US 8,494,250
Note

US Patent 8,494,250

Available from: 2015-06-11 Created: 2015-06-08 Last updated: 2018-01-11
Ernvik, A., Bergström, S., Lundström, C., Ljung, P. & Ynnerman, A. (2012). Image data set compression based on viewing parameters for storing medical image data from multidimensional data sets, related systems, methods and computer products. Google Patentsus 8,295,620.
Open this publication in new window or tab >>Image data set compression based on viewing parameters for storing medical image data from multidimensional data sets, related systems, methods and computer products
Show others...
2012 (English)Patent (Other (popular science, discussion, etc.))
Place, publisher, year, edition, pages
Google Patents, 2012
National Category
Other Computer and Information Science
Identifiers
urn:nbn:se:liu:diva-119041 (URN)
Patent
US 8,295,620
Note

US Patent 8,295,620

Available from: 2015-06-11 Created: 2015-06-08 Last updated: 2018-01-11
Ljung, P. & Ynnerman, A. (2011). Computer processing of multi-dimensional data. Google Patentsus 7,940,270.
Open this publication in new window or tab >>Computer processing of multi-dimensional data
2011 (English)Patent (Other (popular science, discussion, etc.))
Place, publisher, year, edition, pages
Google Patents, 2011
National Category
Other Computer and Information Science
Identifiers
urn:nbn:se:liu:diva-119044 (URN)
Patent
US 7,940,270
Note

US Patent 7,940,270

Available from: 2015-06-11 Created: 2015-06-08 Last updated: 2018-01-11
Lundström, C., Ynnerman, A. & Ljung, P. (2011). Method for reducing the amount of data to be processed in a visualization pipeline. us 7,936,930.
Open this publication in new window or tab >>Method for reducing the amount of data to be processed in a visualization pipeline
2011 (English)Patent (Other (popular science, discussion, etc.))
National Category
Other Computer and Information Science
Identifiers
urn:nbn:se:liu:diva-119040 (URN)
Patent
US 7,936,930
Note

US Patent 7,936,930

Available from: 2015-06-11 Created: 2015-06-08 Last updated: 2018-01-11
Smith-Casem, M., Ljung, P., Stordeur, G., Mo, J.-H. & Mcdermott, B. (2011). Three-Dimensional Reconstruction for Irregular Ultrasound Sampling Grids. us .
Open this publication in new window or tab >>Three-Dimensional Reconstruction for Irregular Ultrasound Sampling Grids
Show others...
2011 (English)Patent (Other (popular science, discussion, etc.))
National Category
Other Computer and Information Science
Identifiers
urn:nbn:se:liu:diva-119055 (URN)
Patent
US
Note

US Patent App. 13/051,706

Available from: 2015-06-11 Created: 2015-06-08 Last updated: 2018-01-11
Scandurra, I., Forsell, C., Ynnerman, A., Ljung, P., Lundström, C. & Persson, A. (2010). Advancing the state-of-the-art for Virtual Autopsies--initial forensic workflow study. Studies in Health Technology and Informatics, 160, 639-643
Open this publication in new window or tab >>Advancing the state-of-the-art for Virtual Autopsies--initial forensic workflow study
Show others...
2010 (Swedish)In: Studies in Health Technology and Informatics, ISSN 0926-9630, E-ISSN 1879-8365, Vol. 160, p. 639-643Article in journal (Refereed) Published
Abstract [en]

There are numerous advantages described of how imaging technology can support forensic examinations. However, postmortem examinations of bodies are mainly performed to address demands which differ from those of traditional clinical image processing. This needs to be kept in mind when gathering information from image data sets for forensic purposes. To support radiologists and forensic clinicians using Virtual Autopsy technologies, an initial workflow study regarding post-mortem imaging has been performed, aiming to receive an improved understanding of how Virtual Autopsy workstations, image data sets and processes can be adjusted to support and improve conventional autopsies. This paper presents potential impacts and a current forensic Virtual Autopsy workflow aiming to form a foundation for collaborative procedures that increase the value of Virtual Autopsy. The workflow study will provide an increased and mutual understanding of involved professionals. In addition, insight into future forensic workflows based on demands from both forensic and radiologist perspectives bring visualization and medical informatics researchers together to develop and improve the technology and software needed.

Place, publisher, year, edition, pages
IOS Press, 2010
National Category
Other Medical Engineering
Identifiers
urn:nbn:se:liu:diva-107498 (URN)10.3233/978-1-60750-588-4-639 (DOI)20841765 (PubMedID)
Available from: 2014-06-13 Created: 2014-06-13 Last updated: 2017-12-05
Nguyen, T. K., Ohlsson, H., Eklund, A., Hernell, F., Ljung, P., Forsell, C., . . . Ynnerman, A. (2010). Concurrent Volume Visualization of Real-Time fMRI. In: Ruediger Westermann and Gordon Kindlmann (Ed.), Proceedings of the 8th IEEE/EG International Symposium on Volume Graphics: . Paper presented at 8th IEEE/EG International Symposium on Volume Graphics, Norrköping, Sweden, 2-3 May, 2010 (pp. 53-60). Goslar, Germany: Eurographics - European Association for Computer Graphics
Open this publication in new window or tab >>Concurrent Volume Visualization of Real-Time fMRI
Show others...
2010 (English)In: Proceedings of the 8th IEEE/EG International Symposium on Volume Graphics / [ed] Ruediger Westermann and Gordon Kindlmann, Goslar, Germany: Eurographics - European Association for Computer Graphics, 2010, p. 53-60Conference paper, Published paper (Refereed)
Abstract [en]

We present a novel approach to interactive and concurrent volume visualization of functional Magnetic Resonance Imaging (fMRI). While the patient is in the scanner, data is extracted in real-time using state-of-the-art signal processing techniques. The fMRI signal is treated as light emission when rendering a patient-specific high resolution reference MRI volume, obtained at the beginning of the experiment. As a result, the brain glows and emits light from active regions. The low resolution fMRI signal is thus effectively fused with the reference brain with the current transfer function settings yielding an effective focus and context visualization. The delay from a change in the fMRI signal to the visualization is approximately 2 seconds. The advantage of our method over standard 2D slice based methods is shown in a user study. We demonstrate our technique through experiments providing interactive visualization to the fMRI operator and also to the test subject in the scanner through a head mounted display.

Place, publisher, year, edition, pages
Goslar, Germany: Eurographics - European Association for Computer Graphics, 2010
Series
Eurographics/IEEE VGTC Symposium on Volume Graphics, ISSN 1727-8376 ; VG10
Keywords
fMRI, Direct volume rendering, Local ambient occlusion, Real-time, Biofeedback
National Category
Medical Image Processing
Identifiers
urn:nbn:se:liu:diva-58060 (URN)10.2312/VG/VG10/053-060 (DOI)978-3-905674-23-1 (ISBN)
Conference
8th IEEE/EG International Symposium on Volume Graphics, Norrköping, Sweden, 2-3 May, 2010
Projects
CADICS
Available from: 2010-07-27 Created: 2010-07-27 Last updated: 2015-11-04Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0002-9288-5322

Search in DiVA

Show all publications