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Scaled Jump in Gravity-Reduced Virtual Environments

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PubDate: January 2017

Teams: Korea University;University of Science and Technology

Writers: MyoungGon Kim; Sunglk Cho; Tanh Quang Tran; Seong-Pil Kim; Ohung Kwon; JungHyun Han

PDF: Scaled Jump in Gravity-Reduced Virtual Environments

Abstract

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.

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