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An adaptive treadmill-style locomotion interface and its application in 3-D interactive virtual market system

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Abstract

The key issue in this paper is estimating speed of a human. Compared with previous researches on walking speed estimation, we predict the walking intention before gait action. Our proposed hypothesis is that a composite force index is linearly correlated with the intended walking speed. We did two experiments to test the hypothesis. One gives a regression test indicating the intended walking speed has strong linear correlation with the proposed force index; the other tests the linearity by statistical analysis, guaranteeing the tolerance of individual difference. According to the regression and statistics analyses, we built a treadmill-style locomotion interface. Compared with the normal cases of treadmill control, the tested subject does not have to follow the speed of treadmill, but can actively change the speed of treadmill by his/her feet. The designed locomotion interface is applied in a virtual market system. Here the subject walks in a virtual market street with the desired speed. The stereo display based on virtual reality and the ambient sounds of the environment make the subject to have an immersed sense. The layout of shops in the virtual market system is in Japanese style, making the subjects experience much more realistic.

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Authors and Affiliations

  1. New York University, 70 Washington Square South, New York, NY, 10012, USA

    Haiwei Dong & Nikolaos Mavridis

  2. Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe, 6578501, Japan

    Zhiwei Luo & Akinori Nagano

Authors
  1. Haiwei Dong
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  2. Zhiwei Luo
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  3. Akinori Nagano
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  4. Nikolaos Mavridis
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Corresponding author

Correspondence to Haiwei Dong.

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Dong, H., Luo, Z., Nagano, A. et al. An adaptive treadmill-style locomotion interface and its application in 3-D interactive virtual market system. Intel Serv Robotics 5, 159–167 (2012). https://doi.org/10.1007/s11370-012-0110-6

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  • DOI: https://doi.org/10.1007/s11370-012-0110-6

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