Basdogan, C;
Ataseven, B;
Srinivasan, MA;
(2023)
Perception of Soft Objects in Virtual Environments Under Conflicting Visual and Haptic Cues.
IEEE Transactions on Haptics
10.1109/TOH.2023.3322189.
(In press).
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Abstract
In virtual/augmented/mixed reality (VR/AR/MR) applications, rendering soft virtual objects using a hand-held haptic device is challenging due to the anatomical restrictions of the hand and the ungrounded nature of the design, which affect the selection of actuators and sensors and hence limit the resolution and range of forces displayed by the device. We developed a cable-driven haptic device for rendering the net forces involved in grasping and squeezing 3D virtual compliant (soft) objects being held between the index finger and thumb only. Using the proposed device, we investigate the perception of soft objects in virtual environments. We show that the range of object stiffness that can be effectively conveyed to a user in virtual environments (VEs) can be significantly expanded by controlling the relationship between the visual and haptic cues. We propose that a single variable, named Apparent Stiffness Difference , can predict the pattern of human stiffness perception under manipulated conflict, which can be used for rendering a range of soft objects in VEs larger than what is achievable by a haptic device alone due to its physical limits.
| Type: | Article |
|---|---|
| Title: | Perception of Soft Objects in Virtual Environments Under Conflicting Visual and Haptic Cues |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/TOH.2023.3322189 |
| Publisher version: | http://dx.doi.org/10.1109/toh.2023.3322189 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | hand-held haptic devices, haptic rendering of soft objects, visual-haptic interactions, stiffness perception, multi-modal illusions, sensory integration, virtual environments |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Computer Science |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10183769 |
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