Obstacle Detection and Avoidance System for Visually Impaired People

@inproceedings{Shin2007ObstacleDA,
  title={Obstacle Detection and Avoidance System for Visually Impaired People},
  author={Byeong Seok Shin and Cheol-Su Lim},
  booktitle={HAID},
  year={2007}
}
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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