Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Reflective Spatial Haptic Interaction Design Approaching a Designerly Understanding of Spatial Haptics
KTH, Skolan för datavetenskap och kommunikation (CSC), Medieteknik och interaktionsdesign, MID.ORCID-id: 0000-0001-8093-5911
2013 (engelsk)Licentiatavhandling, med artikler (Annet vitenskapelig)
Abstract [en]

With a spatial haptic interface device and a suitable haptic rendering algorithm, users can explore and modify virtual geometries in three dimensions with the aid of their haptic (touch) sense. Designers of surgery simulators, anatomy exploration tools and applications that involve assembly of complex objects should consider employing this technology. However, in order to know how the technology behaves as a design material, the designer needs to become well acquainted with its material properties. This presents a significant challenge today, since the haptic devices are presented as black boxes, and implementation of advanced rendering algorithms represent highly specialized and time consuming development activities. In addition, it is difficult to imagine what an interface will feel like until it has been fully implemented, and important design trade-offs such as the virtual object's size and stability gets neglected.

Traditional user-centered design can be interpreted as that the purpose of the field study phase is to generate a set of specifications for an interface, and only solutions that cover these specifications will be considered in the design phase. The designer might miss opportunities to create solutions that uses e.g. lower cost devices since that might require reinterpretation of the overarching goal of the situation with starting point in the technical possibilities, which is unlikely without significant material knowledge. As an example, a surgery simulator designed in this thesis required a high cost haptic device to render adequate forces on the scale of human teeth, but if the design goal is reinterpreted as creating a tool for learning anatomical differences and surgical steps, an application more suitable for the lower cost haptic devices could be crafted. This solution is as much informed by the haptic material "speaking back to" the designer as by field studies.

This licentiate thesis will approach a perspective of spatial haptic interface design that is grounded in contemporary design theory. These theories emphasizes the role of the designer, who is not seen as an objective actor but as someone who has a desire to transform a situation into a preferred one as a service to a client or greater society. It also emphasizes the need for crafting skills in order to innovate, i.e. make designed objects real. Further, it considers aesthetic aspects of a design, which includes the subtle differences in friction as you move the device handle, and overall attractiveness of the device and system.

The thesis will cover a number of design cases which will be related to design theory and reflected upon. Particular focus will be placed on the most common class of haptic devices which can give force feedback in three dimensions and give input in six (position and orientation). Forces will be computed and objects deformed by an volume sampling algorithm which will be discussed. Important design properties such as stiffness, have been identified and exposed as a material for design. A tool for tuning these properties interactively has been developed to assist designers to become acquainted with the spatial haptic material and to craft the material for a particular user experience.

Looking forward, the thesis suggests the future work of making spatial haptic interfaces more design ready, both in software and hardware. This is proposed to be accomplished through development of toolkits for innovation which encapsulate complexities and exposes design parameters. A particular focus will be placed on enabling crafting with the haptic material whose natural limitations should be seen as suggestions rather than hinders for creating valuable solutions.

sted, utgiver, år, opplag, sider
Stockholm: KTH Royal Institute of Technology, 2013. , vii, 49 s.
Serie
Trita-CSC-A, ISSN 1653-5723 ; 2013:08
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-128609OAI: oai:DiVA.org:kth-128609DiVA: diva2:648400
Presentation
2013-09-26, F3, Lindstedtsvägen 26, KTH, Stockholm, 09:10 (engelsk)
Opponent
Veileder
Merknad

QC 20130916

Tilgjengelig fra: 2013-09-16 Laget: 2013-09-16 Sist oppdatert: 2013-09-16bibliografisk kontrollert
Delarbeid
1. Design of Perceptualization Applications in Medicine
Åpne denne publikasjonen i ny fane eller vindu >>Design of Perceptualization Applications in Medicine
2011 (engelsk)Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

We are in this position paper presenting the experiences we have from three medical application projects. A user centered design methodology have been applied in order to ground the design in requirements gathered from field studies of professional medical environments. Methods used have been interviews, user observations in the work context and cooperative evaluations of prototypes. With a particular focus on haptic (touch) feedback, we are exploring how novel medical applications can benefit from feedback to more senses than vision and how needs can berevealed and transformed into effective design.

Emneord
User centered design, perceptualization, haptics, medical
HSV kategori
Identifikatorer
urn:nbn:se:kth:diva-59547 (URN)2-s2.0-84890705975 (Scopus ID)
Konferanse
First workshop on Engineering Interactive Computing Systems for Medicine and Health Care (EICS4Med). Pisa, Italy - June 13, 2011
Merknad

QC 20130916

Tilgjengelig fra: 2012-01-11 Laget: 2012-01-11 Sist oppdatert: 2013-09-16bibliografisk kontrollert
2. Tangible sketching of interactive haptic materials
Åpne denne publikasjonen i ny fane eller vindu >>Tangible sketching of interactive haptic materials
2012 (engelsk)Inngår i: Proceedings of the 6th International Conference on Tangible, Embedded and Embodied Interaction, TEI 2012, Association for Computing Machinery (ACM), 2012, 111-114 s.Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

The activity of sketching can be highly beneficial when applied to the design of haptic material interaction. To illustrate this approach we created a design tool with a tangible hardware interface to facilitate the act of haptic material sketching and used this tool to design an anatomy exploration application. We found this approach particularly efficient in designing non-visual properties of haptic materials. The design tool enabled instant tactile perception of changes in material properties combined with the ability to make on the fly adjustments, thus creating a sense of pliability.

sted, utgiver, år, opplag, sider
Association for Computing Machinery (ACM), 2012
Emneord
Design, Haptics, Interaction Design, Sketching, Tangible Interfaces, Design tool, Hardware interfaces, Material interactions, Material property, On the flies, Tactile perception, Haptic interfaces, Interactive computer systems, Interfaces (materials)
HSV kategori
Identifikatorer
urn:nbn:se:kth:diva-99658 (URN)10.1145/2148131.2148156 (DOI)2-s2.0-84859027105 (Scopus ID)9781450311748 (ISBN)
Konferanse
6th International Conference on Tangible, Embedded and Embodied Interaction, TEI 2012; Kingston, ON; 19 February 2012 through 22 February 2012
Merknad
QC 20120801Tilgjengelig fra: 2012-08-01 Laget: 2012-08-01 Sist oppdatert: 2016-03-09bibliografisk kontrollert
3. Three Themes of User Experiencein Haptic Application Design
Åpne denne publikasjonen i ny fane eller vindu >>Three Themes of User Experiencein Haptic Application Design
2012 (engelsk)Manuskript (preprint) (Annet vitenskapelig)
Abstract [en]

User experience theory have the potential of improvinghaptic design. Reections from applying haptics inmedical applications will be reported and related to theorygrouped by identied themes. The potential of knowledgecreation in light of these themes will be argued for.

Emneord
user experience, interaction aesthetics, design, haptics
HSV kategori
Identifikatorer
urn:nbn:se:kth:diva-128603 (URN)
Merknad

QS 2013

Tilgjengelig fra: 2013-09-16 Laget: 2013-09-16 Sist oppdatert: 2013-09-16bibliografisk kontrollert
4. The effect of haptic degrees of freedom on task performance in virtual surgical environments
Åpne denne publikasjonen i ny fane eller vindu >>The effect of haptic degrees of freedom on task performance in virtual surgical environments
Vise andre…
2013 (engelsk)Inngår i: Studies in Health Technology and Informatics, ISSN 0926-9630, E-ISSN 1879-8365, Vol. 184, 129-135 s.Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Force and touch feedback, or haptics, can play a significant role in the realism of virtual reality surgical simulation. While it is accepted that simulators providing haptic feedback often outperform those that do not, little is known about the degree of haptic fidelity required to achieve simulation objectives. This article evaluates the effect that employing haptic rendering with different degrees of freedom (DOF) has on task performance in a virtual environment. Results show that 6-DOF haptic rendering significantly improves task performance over 3-DOF haptic rendering, even if computed torques are not displayed to the user. No significant difference could be observed between under-actuated (force only) and fully-actuated 6-DOF feedback in two surgically-motivated tasks.

sted, utgiver, år, opplag, sider
IOS Press, 2013
Emneord
surgical simulation, haptics, haptic rendering, task performance
HSV kategori
Identifikatorer
urn:nbn:se:kth:diva-128604 (URN)10.3233/978-1-61499-209-7-129 (DOI)23400144 (PubMedID)2-s2.0-84879517273 (Scopus ID)
Merknad

QC 20130916

Tilgjengelig fra: 2013-09-16 Laget: 2013-09-16 Sist oppdatert: 2016-03-09bibliografisk kontrollert
5. Design and implementation of a maxillofacial surgery rehearsal environment with haptic interaction for bone fragment and plate alignment
Åpne denne publikasjonen i ny fane eller vindu >>Design and implementation of a maxillofacial surgery rehearsal environment with haptic interaction for bone fragment and plate alignment
Vise andre…
2012 (engelsk)Inngår i: Proceedings of Computer Assisted Radiology and Surgery, 2012, Vol. 184Konferansepaper, Poster (with or without abstract) (Fagfellevurdert)
Emneord
surgical simulation, haptics, haptic rendering, task performance
HSV kategori
Identifikatorer
urn:nbn:se:kth:diva-128605 (URN)
Konferanse
Computer Assisted Radiology and Surgery, 2012
Merknad

QC 20130916

Tilgjengelig fra: 2013-09-16 Laget: 2013-09-16 Sist oppdatert: 2013-09-16bibliografisk kontrollert

Open Access i DiVA

Thesis(2589 kB)286 nedlastinger
Filinformasjon
Fil FULLTEXT01.pdfFilstørrelse 2589 kBChecksum SHA-512
9b19a766449112ea0e39993e289a43d12a7a18cb81aa39e5a5e12527a83cd54a55967d3a351037e6684df643ba4a9a282c0ddfe43614d0d75530957b58199ac0
Type fulltextMimetype application/pdf

Personposter BETA

Forsslund, Jonas

Søk i DiVA

Av forfatter/redaktør
Forsslund, Jonas
Av organisasjonen

Søk utenfor DiVA

GoogleGoogle Scholar
Totalt: 286 nedlastinger
Antall nedlastinger er summen av alle nedlastinger av alle fulltekster. Det kan for eksempel være tidligere versjoner som er ikke lenger tilgjengelige

urn-nbn

Altmetric

urn-nbn
Totalt: 294 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf