Evaluating the minimum jerk motion model for redirected reach in virtual reality

Eric J. Gonzalez, Parastoo Abtahi, Sean Follmer

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Scopus citations

Abstract

Reach redirection in virtual reality uses spatial distortion to augment interaction with passive props as well as active haptic devices. For such dynamic physical systems, motion modeling is needed to update the interface based on users' predicted targets & trajectories. However, it remains unclear how well standard predictive models hold under redirection. In this work we evaluate one such commonly used model, the Minimum-Jerk (MJ) model, during redirected reach at various lateral offsets up to 16cm. Results show that larger redirection significantly worsens MJ model fit, suggesting that models should be adjusted for reaches with considerable redirection. Predicted arrival times, based on fitting an MJ model on the first half of reach data, led to an average error of -0.29s for redirected reach, compared to -0.03s for normal reach.

Original languageEnglish (US)
Title of host publicationUIST 2019 Adjunct - Adjunct Publication of the 32nd Annual ACM Symposium on User Interface Software and Technology
PublisherAssociation for Computing Machinery, Inc
Pages4-6
Number of pages3
ISBN (Electronic)9781450368179
DOIs
StatePublished - Oct 14 2019
Externally publishedYes
Event32nd Annual ACM Symposium on User Interface Software and Technology, UIST 2019 - New Orleans, United States
Duration: Oct 20 2019Oct 23 2019

Publication series

NameUIST 2019 Adjunct - Adjunct Publication of the 32nd Annual ACM Symposium on User Interface Software and Technology

Conference

Conference32nd Annual ACM Symposium on User Interface Software and Technology, UIST 2019
Country/TerritoryUnited States
CityNew Orleans
Period10/20/1910/23/19

All Science Journal Classification (ASJC) codes

  • Human-Computer Interaction
  • Software

Keywords

  • Haptics
  • Illusion
  • Perception
  • Retargeting
  • Virtual reality

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