Scaled Jump in Gravity-Reduced Virtual Environments

Myounggon Kim, Sunglk Cho, Tanh Quang Tran, Seong Pil Kim, Ohung Kwon, Junghyun Han

Research output: Contribution to journalArticlepeer-review

31 Citations (Scopus)


The reduced gravity experienced in lunar or Martian surfaces can be simulated on the earth using a cable-driven system, where the cable lifts a person to reduce his or her weight. This paper presents a novel cable-driven system designed for the purpose. It is integrated with a head-mounted display and a motion capture system. Focusing on jump motion within the system, this paper proposes to scale the jump and reports the experiments made for quantifying the extent to which a jump can be scaled without the discrepancy between physical and virtual jumps being noticed by the user. With the tolerable range of scaling computed from these experiments, an application named retargeted jump is developed, where a user can jump up onto virtual objects while physically jumping in the real-world flat floor. The core techniques presented in this paper can be extended to develop extreme-sport simulators such as parasailing and skydiving.

Original languageEnglish
Article number7829423
Pages (from-to)1360-1368
Number of pages9
JournalIEEE Transactions on Visualization and Computer Graphics
Issue number4
Publication statusPublished - 2017 Apr

Bibliographical note

Publisher Copyright:
© 1995-2012 IEEE.


  • Virtual reality
  • detection thresholds
  • reduced gravity
  • scaled jump
  • visual gain

ASJC Scopus subject areas

  • Software
  • Signal Processing
  • Computer Vision and Pattern Recognition
  • Computer Graphics and Computer-Aided Design


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