research-article

Exaggeration of Avatar Flexibility in Virtual Reality

Authors:

Antti Granqvist,

Perttu HämäläinenAuthors Info & Claims

CHI PLAY '18: Proceedings of the 2018 Annual Symposium on Computer-Human Interaction in Play

Pages 201 - 209

https://doi.org/10.1145/3242671.3242694

Published: 23 October 2018 Publication History

Abstract

Empowerment of movement through superhuman strength and flexibility is a staple of action video game design. However, relatively little work has been done on the same in the context of Virtual Reality and exergames, especially outside the most obvious parameters such as jumping height and locomotion speed. We contribute a controlled experiment (N=30) of exaggerating avatar flexibility in a martial arts kicking task. We compared different settings for a nonlinear mapping from real to virtual hip rotations, with the aim of increasing the avatar's range of movement and kicking height. Our results show that users prefer medium exaggeration over realistic or grossly exaggerated flexibility. Medium exaggeration also yields significantly higher kicking performance as well as perceived competence and naturalness. The results are similar both in 1st and 3rd person views. To the best of our knowledge, this is the first study of exaggerated flexibility in VR, and the results suggest that the approach offers many benefits to VR and exergame design.

Supplementary Material

suppl.mov (play1082.mp4)

Supplemental video

Download
156.68 MB

References

[1]

Mahdi Azmandian, Mark Hancock, Hrvoje Benko, Eyal Ofek, and Andrew D Wilson. 2016. Haptic retargeting: Dynamic repurposing of passive haptics for enhanced virtual reality experiences. In Proceedings of the 2016 chi conference on human factors in computing systems. ACM, 1968--1979.

Digital Library

[2]

James Bear. 2017. HTC Vive IK Demo. https://github.com/JamesBear/vive_ik_demo. (2017).

[3]

Amit Bleiweiss, Dagan Eshar, Gershom Kutliroff, Alon Lerner, Yinon Oshrat, and Yaron Yanai. 2010. Enhanced Interactive Gaming by Blending Full-body Tracking and Gesture Animation. In ACM SIGGRAPH ASIA 2010 Sketches (SA '10). ACM, New York, NY, USA, Article 34, 2 pages.

Digital Library

[4]

EL Deci and RM Ryan. 2015. SDT: Questionnaires: Intrinsic motivation inventory (IMI). (2015).

[5]

Perttu H"am"al"ainen and Johanna Höysniemi. 2002. A computer vision and hearing based user interface for a computer game for children. In ERCIM Workshop on User Interfaces for All. Springer, 299--318.

Digital Library

[6]

Perttu Hämäläinen, Tommi Ilmonen, Johanna Höysniemi, Mikko Lindholm, and Ari Nykänen. 2005. Martial arts in artificial reality. In Proceedings of the SIGCHI conference on Human factors in computing systems. ACM, 781--790.

Digital Library

[7]

Perttu Hämäläinen and Raine Kajastila. 2014. Mixed reality empowerment for enhancing physical exercise. In Proceedings of the CHI 2014 HCI and Sports Workshop. http://mobilelifecentre.org/content/chi-workshop-hci-and-sports.

[8]

Perttu Hämäläinen, Joe Marshall, Raine Kajastila, Richard Byrne, and Florian Floyd Mueller. 2015. Utilizing gravity in movement-based games and play. In Proceedings of the 2015 Annual Symposium on Computer-Human Interaction in Play. ACM, 67--77.

Digital Library

[9]

Raine Kajastila, Leo Holsti, and Perttu Hämäläinen. 2014. Empowering the Exercise: a Body-Controlled Trampoline Training Game. International Journal of Computer Science in Sport 13, 1 (2014).

[10]

Felix Kistler, Birgit Endrass, Ionut Damian, Chi Tai Dang, and Elisabeth André. 2012. Natural interaction with culturally adaptive virtual characters. Journal on Multimodal User Interfaces 6, 1--2 (2012), 39--47.

[11]

Kimberley A Klint and Maureen R Weiss. 1987. Perceived competence and motives for participating in youth sports: A test of Harter's competence motivation theory. Journal of sport Psychology 9, 1 (1987), 55--65.

[12]

Markus Löchtefeld, Antonio Krüger, and Hans Gellersen. 2016. DeceptiBike: Assessing the Perception of Speed Deception in a Virtual Reality Training Bike System. In Proceedings of the 9th Nordic Conference on Human-Computer Interaction. ACM, 40.

Digital Library

[13]

Microsoft. 2011. Michael Phelps: Push the Limit. Video game. (2011).

[14]

R Hugh Morton. 2009. Deception by manipulating the clock calibration influences cycle ergometer endurance time in males. Journal of Science and Medicine in Sport 12, 2 (2009), 332--337.

[15]

Christos Mousas. 2017. Full-Body Locomotion Reconstruction of Virtual Characters Using a Single Inertial Measurement Unit. Sensors 17, 11 (2017).

[16]

Ori Ossmy and Roy Mukamel. 2016. Neural Network Underlying Intermanual Skill Transfer in Humans. Cell reports 17, 11 (2016), 2891--2900.

[17]

Jessica Peralta. 2016. Jumping on a trend: Indoor trampoline parks are big business for owners, and fun and exercise for kids and adults. http://www.latimes.com/socal/daily-pilot/entertainment/tn-wknd-et-1204-trampoline-parks-20161126-story.html. (2016).

[18]

Rabindra Ratan. 2012. Self-presence, explicated: body, emotion, and identity. Handbook of Research on Technoself: Identity in a Technological Society (2012), 322.

[19]

Sharif Razzaque, Zachariah Kohn, and Mary C Whitton. 2001. Redirected walking. In Proceedings of EUROGRAPHICS, Vol. 9. Citeseer, 105--106.

Digital Library

[20]

Glyn C Roberts, Douglas A Kleiber, and Joan L Duda. 1981. An analysis of motivation in children's sport: The role of perceived competence in participation. Journal of sport Psychology 3, 3 (1981), 206--216.

[21]

Richard M Ryan, C Scott Rigby, and Andrew Przybylski. 2006. The motivational pull of video games: A self-determination theory approach. Motivation and emotion 30, 4 (2006), 344--360.

[22]

Roland Sigrist, Georg Rauter, Robert Riener, and Peter Wolf. 2013. Augmented visual, auditory, haptic, and multimodal feedback in motor learning: a review. Psychonomic bulletin & review 20, 1 (2013), 21--53.

[23]

Jari Takatalo, Jukka Häkkinen, Jyrki Kaistinen, and Göte Nyman. 2010. Presence, involvement, and flow in digital games. In Evaluating user experience in games. Springer, 23--46.

[24]

Paul Tennent, Joe Marshall, Brendan Walker, Patrick Brundell, and Steve Benford. 2017. The Challenges of Visual-Kinaesthetic Experience. In Proceedings of the 2017 Conference on Designing Interactive Systems (DIS '17). ACM, New York, NY, USA, 1265--1276.

Digital Library

Cited By

Benbelkheir YLerga AArdaiz O(2024)A Virtual Reality Direct-Manipulation Tool for Posing and Animation of Digital Human Bodies: An Evaluation of Creativity SupportMultimodal Technologies and Interaction10.3390/mti80700608:7(60)Online publication date: 10-Jul-2024
https://doi.org/10.3390/mti8070060
Tyack AMekler E(2024)Self-Determination Theory and HCI Games Research: Unfulfilled Promises and Unquestioned ParadigmsACM Transactions on Computer-Human Interaction10.1145/367323031:3(1-74)Online publication date: 15-Jun-2024
https://dl.acm.org/doi/10.1145/3673230
Laattala MHämäläinen P(2024)Duet: VR Pair Dancing with Partner Movement ManipulationCompanion Proceedings of the 2024 Annual Symposium on Computer-Human Interaction in Play10.1145/3665463.3678838(306-311)Online publication date: 14-Oct-2024
https://dl.acm.org/doi/10.1145/3665463.3678838
Show More Cited By

Index Terms

Exaggeration of Avatar Flexibility in Virtual Reality
1. Human-centered computing
  1. Human computer interaction (HCI)

Recommendations

Evaluating the Actual and Perceived Exertion Provided by Virtual Reality Games
CHI EA '17: Proceedings of the 2017 CHI Conference Extended Abstracts on Human Factors in Computing Systems

Virtual Reality games have shown potential to make exercise fun and engaging. This is because many virtual reality games, using devices like the HTC Vive, offer engaging experiences where interaction requires the player to physically move around, moving ...
Adapting Data from Physical Activity Sensors for Visualising Exertion in Virtual Reality Games
UbiComp '18: Proceedings of the 2018 ACM International Joint Conference and 2018 International Symposium on Pervasive and Ubiquitous Computing and Wearable Computers

Head mounted display (HMD) virtual reality (VR) games have shown promise beyond entertainment. Work has shown that playing VR games even for 10 minutes can provide players with valuable levels of physical exertion that is much higher then their ...
The presence of an avatar can reduce cybersickness in Virtual Reality
Abstract
Virtual Reality (VR) applications are increasingly being utilized for research, healthcare, and education. Despite their benefits, many VR users report motion sickness-like sensations (cybersickness), such as headache, disorientation, or nausea. ...

Comments

Information & Contributors

Information

Published In

cover image ACM Conferences

CHI PLAY '18: Proceedings of the 2018 Annual Symposium on Computer-Human Interaction in Play

October 2018

563 pages

ISBN:9781450356244

DOI:10.1145/3242671

General Chairs:
Florian 'Floyd' Mueller
Exertion Games Lab, RMIT University, Melbourne, Australia
,
Daniel Johnson
Queensland University of Technology, Brisbane, Australia
,
Ben Schouten
Eindhoven University of Technology and Amsterdam University of Applied Sciences, the Netherlands
,
Program Chairs:
Phoebe O. Toups Dugas
Play & Interactive Experiences for Learning Lab, New Mexico State University, Las Cruces, New Mexico, USA
,
Peta Wyeth
Queensland University of Technology, Brisbane, Australia

Copyright © 2018 ACM.

Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

Sponsors

SIGCHI: ACM Special Interest Group on Computer-Human Interaction

Publisher

Association for Computing Machinery

New York, NY, United States

Publication History

Published: 23 October 2018

Permissions

Request permissions for this article.

Request Permissions

Check for updates

Author Tags

Qualifiers

Research-article

Funding Sources

Academy of Finland

Conference

CHI PLAY '18

Sponsor:

SIGCHI

CHI PLAY '18: The annual symposium on Computer-Human Interaction in Play

October 28 - 31, 2018

VIC, Melbourne, Australia

Acceptance Rates

CHI PLAY '18 Paper Acceptance Rate 43 of 123 submissions, 35%;

Overall Acceptance Rate 421 of 1,386 submissions, 30%

Contributors

Other Metrics

View Article Metrics

Bibliometrics & Citations

Bibliometrics

Article Metrics

31
Total Citations
View Citations
733
Total Downloads

Downloads (Last 12 months)66
Downloads (Last 6 weeks)3

Reflects downloads up to 03 Mar 2025

Other Metrics

View Author Metrics

Citations

Cited By

Benbelkheir YLerga AArdaiz O(2024)A Virtual Reality Direct-Manipulation Tool for Posing and Animation of Digital Human Bodies: An Evaluation of Creativity SupportMultimodal Technologies and Interaction10.3390/mti80700608:7(60)Online publication date: 10-Jul-2024
https://doi.org/10.3390/mti8070060
Tyack AMekler E(2024)Self-Determination Theory and HCI Games Research: Unfulfilled Promises and Unquestioned ParadigmsACM Transactions on Computer-Human Interaction10.1145/367323031:3(1-74)Online publication date: 15-Jun-2024
https://dl.acm.org/doi/10.1145/3673230
Laattala MHämäläinen P(2024)Duet: VR Pair Dancing with Partner Movement ManipulationCompanion Proceedings of the 2024 Annual Symposium on Computer-Human Interaction in Play10.1145/3665463.3678838(306-311)Online publication date: 14-Oct-2024
https://dl.acm.org/doi/10.1145/3665463.3678838
Bhatia APohl HHirzle TSeifi HHornbæk K(2024)Using the Visual Language of Comics to Alter Sensations in Augmented RealityProceedings of the 2024 CHI Conference on Human Factors in Computing Systems10.1145/3613904.3642351(1-17)Online publication date: 11-May-2024
https://dl.acm.org/doi/10.1145/3613904.3642351
Laattala MPiitulainen RAdy NTamariz MHämäläinen P(2024)WAVE: Anticipatory Movement Visualization for VR DancingProceedings of the 2024 CHI Conference on Human Factors in Computing Systems10.1145/3613904.3642145(1-9)Online publication date: 11-May-2024
https://dl.acm.org/doi/10.1145/3613904.3642145
Karaosmanoglu SCmentowski SNacke LSteinicke F(2024)Born to Run, Programmed to Play: Mapping the Extended Reality Exergames LandscapeProceedings of the 2024 CHI Conference on Human Factors in Computing Systems10.1145/3613904.3642124(1-28)Online publication date: 11-May-2024
https://dl.acm.org/doi/10.1145/3613904.3642124
Kontio RLaattala MWelsch RHämäläinen P(2023)“I Feel My Abs”: Exploring Non-standing VR LocomotionProceedings of the ACM on Human-Computer Interaction10.1145/36110697:CHI PLAY(1282-1307)Online publication date: 4-Oct-2023
https://dl.acm.org/doi/10.1145/3611069
Chung YAnnaswamy TPrabhakaran BZimmermann RShirmohammadi SGriwodz CHefeeda MWang M(2023)Performance and User Experience Studies of HILLES: Home-based Immersive Lower Limb Exergame SystemProceedings of the 14th Conference on ACM Multimedia Systems10.1145/3587819.3590985(62-73)Online publication date: 7-Jun-2023
https://dl.acm.org/doi/10.1145/3587819.3590985
Kang SKim GLee KKim S(2023)Giant Finger: Visuo-proprioceptive congruent virtual legs for flying actions in virtual reality2023 IEEE Conference on Virtual Reality and 3D User Interfaces Abstracts and Workshops (VRW)10.1109/VRW58643.2023.00309(933-934)Online publication date: Mar-2023
https://doi.org/10.1109/VRW58643.2023.00309
Kang SKim GKim S(2023)Giant Finger: A Novel Visuo-Somatosensory Approach to Simulating Lower Body Movements in Virtual Reality2023 IEEE International Symposium on Mixed and Augmented Reality (ISMAR)10.1109/ISMAR59233.2023.00038(233-242)Online publication date: 16-Oct-2023
https://doi.org/10.1109/ISMAR59233.2023.00038
Show More Cited By

View Options

Login options

Check if you have access through your login credentials or your institution to get full access on this article.

Full Access

Get this Publication

View options

PDF

View or Download as a PDF file.

eReader

View online with eReader.

Figures

Tables

Media

View Table of Conten