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

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Proxy-based Haptic Feedback from Volumetric Density Data
Linköping University, Department of Science and Technology, Visual Information Technology and Applications (VITA). Linköping University, The Institute of Technology.ORCID iD: 0000-0003-2429-0842
Linköping University, Department of Science and Technology, Visual Information Technology and Applications (VITA). Linköping University, The Institute of Technology.ORCID iD: 0000-0002-9466-9826
Linköping University, Department of Science and Technology, Digital Media. Linköping University, The Institute of Technology.
2002 (English)In: Proceedings of the Eurohaptics Conference, 2002, 104-109 p.Conference paper, Published paper (Refereed)
Abstract [en]

In this paper a new approach to volume haptics is presented. The developed method makes use of a proxy that is constrained by ‘virtual surfaces’, defined by the local gradient at the proxy position, and not by iso-values as in other approaches to volume haptics. By using a proxy, material properties like friction, stiffness and surface penetrability can be implemented. These material properties are controlled by user defined transfer functions. At the same time, using the gradient to define surfaces, rendering of infinitesimally close virtual surfaces that can be penetrated, is made possible. The algorithm exhibits very high stability, is fast and represents fine details accurately. Compared to earlier techniques, less artifacts occur and higher configurability is provided.

Place, publisher, year, edition, pages
2002. 104-109 p.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-14403OAI: oai:DiVA.org:liu-14403DiVA: diva2:23451
Available from: 2007-05-14 Created: 2007-05-14 Last updated: 2015-09-22
In thesis
1. Direct Volume Haptics for Visualization
Open this publication in new window or tab >>Direct Volume Haptics for Visualization
2007 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Visualization is the process of making something perceptible to the mind or imagination. The techniques for producing visual imagery of volumetric data have advanced immensely during the last decades to a point where each produced image can include an overwhelming amount of information. An increasingly viable solution to the limitations of the human sense of visual perception is to make use of not only vision, but also additional senses.

This thesis presents recent work on the development of principles and algorithms for generating representations of volumetric data through the sense of touch for the purpose of visualization. The primary idea introduced in this work is the concept of yielding constraints, that can be used to provide a continuous set of shapes as a representation of features of interest in various types of volumetric data. Some of the earlier identified standard human exploratory procedures can then be used which enables natural, intuitive and effective interaction with the data. The yielding constraints concept is introduced, and an algorithm based on haptic primitives is described, which forms a powerful yet versatile implementation of the yielding constraints. These methods are also extended to handle time-varying, moving and low quality data. A framework for multimodal visualization has been built on the presented methods, and this is used to demonstrate the applicability and versatility of the work through several example applications taken from different areas.

Place, publisher, year, edition, pages
Linköping: Institutionen för teknik och naturvetenskap, 2007. 76 p.
Series
Linköping Studies in Science and Technology. Dissertations, ISSN 0345-7524 ; 0345-7524
Keyword
Haptic Visualization, Volumetric Data, Haptic Primitives, Shape Representations, Time-varying Data
National Category
Computer Engineering
Identifiers
urn:nbn:se:liu:diva-8771 (URN)978-91-85831-98-2 (ISBN)
Public defence
2007-05-25, K1, Kåkenhus, Campus Norrköping, Linköpings universitet, Norrköping, 14:15 (English)
Opponent
Supervisors
Available from: 2007-05-14 Created: 2007-05-14 Last updated: 2015-09-22

Open Access in DiVA

No full text

Other links

Link to articleLink to Ph.D. Thesis

Authority records BETA

Lundin Palmerius, KarljohanYnnerman, AndersGudmundsson, Björn

Search in DiVA

By author/editor
Lundin Palmerius, KarljohanYnnerman, AndersGudmundsson, Björn
By organisation
Visual Information Technology and Applications (VITA)The Institute of TechnologyDigital Media
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric score

urn-nbn
Total: 312 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf