Three dimensional visor display system for the postural stability analysis

Makoto Yoshizawa, H. S. Lin, Hiroshi Takeda, M. Ozawa

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)

Abstract

A measurement system was developed to quantify the effect of altering visual feedback information on human body sway. A three-dimensional visor display was proposed to provide the eyes with stereoscopic vision depending on head motion. A pair of CCD cameras and a pair of liquid-crystal displays were used to show wide images with binocular parallax to the test subject. The head motion on the frontal plane was measured online by using the image processing unit for the video signal obtained from the CCD cameras, and an ultrasonic distance sensor was used to measure the rotation of the head on the horizontal plane. In the experiments, the subject used head rotation to track a visual reference signal. The results from the experiments reveal that the vestibular information contradictory to the visual information increased body sway.

Original languageEnglish
Pages (from-to)859-860
Number of pages2
JournalAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
Volume11 pt 3
Publication statusPublished - 1989 Nov 1
EventImages of the Twenty-First Century - Proceedings of the 11th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 1 - Seattle, WA, USA
Duration: 1989 Nov 91989 Nov 12

ASJC Scopus subject areas

  • Signal Processing
  • Biomedical Engineering
  • Computer Vision and Pattern Recognition
  • Health Informatics

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