Journal of the Korea Institute of Information and Communication Engineering (한국정보통신학회논문지)

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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A Study on Motion and Position Recognition Considering VR Environments

VR 환경을 고려한 동작 및 위치 인식에 관한 연구

  • Oh, Am-suk (Department of Media Engineering, Tongmyong University)
  • Received : 2017.11.03
  • Accepted : 2017.11.10
  • Published : 2017.12.31
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Abstract

In this paper, we propose a motion and position recognition technique considering an experiential VR environment. Motion recognition attaches a plurality of AHRS devices to a body part and defines a coordinate system based on this. Based on the 9 axis motion information measured from each AHRS device, the user's motion is recognized and the motion angle is corrected by extracting the joint angle between the body segments. The location recognition extracts the walking information from the inertial sensor of the AHRS device, recognizes the relative position, and corrects the cumulative error using the BLE fingerprint. To realize the proposed motion and position recognition technique, AHRS-based position recognition and joint angle extraction test were performed. The average error of the position recognition test was 0.25m and the average error of the joint angle extraction test was $3.2^{\circ}$.

본 논문에서는 체험형 VR 환경을 고려한 동작 및 위치 인식 기법을 제안한다. 동작 인식은 신체부위에 복수개의 AHRS 디바이스를 부착하고 이를 기준으로 좌표계를 정의한다. 각각의 AHRS 디바이스로부터 측정되는 9축 움직임 정보를 기반으로 사용자의 동작을 인식하고 신체 분절 간의 관절각을 추출하여 동작을 보정한다. 위치인식은 AHRS 디바이스의 관성센서를 통해 보행 정보를 추출하여 상대위치를 인식하고 BLE Fingerprint를 이용하여 누적오차를 보정한다. 제안하는 동작 및 위치인식 기법의 구현을 위해 AHRS기반의 위치인식과 관절각 추출 실험을 진행하였다. 위치 인식 실험의 평균 오차는 0.25m, 관절 각 추출 실험에서 관절 각 평균 오차는 $3.2^{\circ}$로 나타났다.

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References

  1. J. S. Lee, J. A. Noh, S. H. Lim and S. J Lee, "An Activity Contents Technology Trend Based on Virtual Reality," ETRI Electronics and Telecommunications Trends, vol.27, no.3, pp.1-73, Mar. 2012.
  2. J. Y. Jung, J. S. Na, C. W. Lee, G. Y. Lee and J. H. Kim, "Prediction of head movements using neck EMG for VR," Journal of Sensor Science and Technology, vol.25, no.5, pp.365-370, May 2016. https://doi.org/10.5369/JSST.2016.25.5.365
  3. J. S. Park and Y. C. Seok, "Advertisement Analysis System with Eye Tracking VR HMD(Virtual Reality Head Mounted Display," Smart media journal, vol.5, no.3, pp.1-5, Mar. 2016.
  4. A. Y. Kim, W. S. Chae, G. H. Zhang, H. L. Choi, B. S. Kim and J. W. Lee, "Trends Analysis on virtual reality," ETRI Electronics and Telecommunications Trends, vol.31, no.4, pp.23-35, Apr. 2016.
  5. J. Borenstein, L. Ojeda, and S. Kwanmuang, "Heuristic reduction of gyro drift for personnel tracking systems," The Journal of navigation, vol.62, no.1, pp.41-58, Jan. 2009. https://doi.org/10.1017/S0373463308005043
  6. S. H. Fang and T. N. Lin, "Principal component localization in indoor WLAN environments," IEEE Trans. on MobileComputing, vol.11, no.1, pp.100-110, Jan. 2012.
  7. C. Huang, Z. Liao, and L. Zhao, "Synergism of INS and PDR in self-contained pedestrian tracking with a miniature sensor module," IEEE Sensors Journal, vol.10, no.8, pp. 1349-1359, Aug. 2010. https://doi.org/10.1109/JSEN.2010.2044238
  8. Y. Zhou, C. L. Law, Y. L. Guan, and F. Chin, "Indoor elliptical localization based on asynchronous UWB range measurement," IEEE Trans. on Instrumentation and Measurement, vol.60, no.1, pp.248-257, 2011. https://doi.org/10.1109/TIM.2010.2049185
  9. J. Park and J. Lee, "A beacon color code scheduling for the localization of multiple robots," IEEE Trans. on Industrial Informatics, vol.7, no.3, pp.467-475, Mar. 2011. https://doi.org/10.1109/TII.2011.2158833
  10. Oculus. Oculus-Left [Internet]. Available: https://www.oculus.com/rift/.
  11. Y. M. Lim and T. H. Jo, "Development Direction and Implications of Virtual Reality / Augmented Reality Technology," Software Policy & Research Institute Issu Report, vol.14, pp.1-23, Jul. 2017.
  12. F. Ramsey and R. Harle, "An analysis of the accuracy of bluetooth low energy for indoor positioning applications," in proceedings of the 27th International Technical Meeting of The Satellite Division of the Institute of Navigation (ION GNSS+ 2014), Florida: FL, vol.812, pp.201-210, Sep. 2014.
  13. S. K. Song, "Regulatory Reform Solution of VR Contents Industry based on Simulator," Journal of the Korea Institute of Information and Communication Engineering, vol.21, no.11, pp.2083-2088, Nov. 2017. https://doi.org/10.6109/JKIICE.2017.21.11.2083
  14. R. J. Conejar, H. K. Kim, "A Review on Mobile Services Secure Mobility Platform," Journal of Security Engineering, vol.12, no.5, pp.525-532, May 2015. https://doi.org/10.14257/jse.2015.10.09