Obstacle Detection and Avoidance System for Visually Impaired People

  title={Obstacle Detection and Avoidance System for Visually Impaired People},
  author={Byeong Seok Shin and Cheol-Su Lim},
In this paper, we implemented a wearable system for visually impaired users which allows them to detect and avoid obstacles. This is based on ultrasound sensors which can acquire range data from objects in the environment by estimating the time-of-flight of the ultrasound signal. Using a hemispherical sensor array, we can detect obstacles and determine which directions should be avoided. However, the ultrasound sensors are only used to detect whether obstacles are present in front of users. We… CONTINUE READING
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A Study on the Sound-Imaging Algorithm of Obstacle Information for the Visually Impaired

  • H. M. Shim, J. S. Lee, E. H. Lee, S. H. Hong
  • ITC-CSCC 2002, pp. 389–392
  • 2002
1 Excerpt

Navigation and Guidance of An Intelligent Mobile Robot

  • H. Hu, D. Gu, M. Brady
  • EUROBOT 1997. Second Euromicro Workshop on…
  • 1997
1 Excerpt

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