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JumpMod: Haptic Backpack that Modifies Users’ Perceived Jump

Published: 19 April 2023 Publication History

Abstract

Vertical force-feedback is extremely rare in mainstream interactive experiences. This happens because existing haptic devices capable of sufficiently strong forces that would modify a user's jump require grounding (e.g., motion platforms or pulleys) or cumbersome actuators (e.g., large propellers attached or held by the user). To enable interactive experiences to feature jump-based haptics without sacrificing wearability, we propose JumpMod, an untethered backpack that modifies one's sense of jumping. JumpMod achieves this by moving a weight up/down along the user's back, which modifies perceived jump momentum—creating accelerated & decelerated jump sensations. In our second study, we empirically found that our device can render five effects: jump higher, land harder/softer, pulled higher/lower. Based on these, we designed four jumping experiences for VR & sports. Finally, in our third study, we found that participants preferred wearing our device in an interactive context, such as one of our jump-based VR applications.

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  • (2024)Pushed by Sound: Effects of Sound and Movement Direction on Body Perception, Experience Quality, and Exercise SupportACM Transactions on Computer-Human Interaction10.1145/364861631:4(1-36)Online publication date: 19-Sep-2024
  • (2023)WeightMorphy: A Dynamic Weight-Shifting Method to Enhance the Virtual Experience with Body DeformationProceedings of the 2023 ACM International Symposium on Wearable Computers10.1145/3594738.3611367(71-75)Online publication date: 8-Oct-2023

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cover image ACM Conferences
CHI '23: Proceedings of the 2023 CHI Conference on Human Factors in Computing Systems
April 2023
14911 pages
ISBN:9781450394215
DOI:10.1145/3544548
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Published: 19 April 2023

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  1. backpack
  2. full-body
  3. haptics
  4. jumping
  5. virtual reality
  6. wearable

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  • (2024)Pushed by Sound: Effects of Sound and Movement Direction on Body Perception, Experience Quality, and Exercise SupportACM Transactions on Computer-Human Interaction10.1145/364861631:4(1-36)Online publication date: 19-Sep-2024
  • (2023)WeightMorphy: A Dynamic Weight-Shifting Method to Enhance the Virtual Experience with Body DeformationProceedings of the 2023 ACM International Symposium on Wearable Computers10.1145/3594738.3611367(71-75)Online publication date: 8-Oct-2023

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