Exploration and avoidance of surrounding obstacles for the visually impaired

@inproceedings{Zeng2012ExplorationAA,
  title={Exploration and avoidance of surrounding obstacles for the visually impaired},
  author={Limin Zeng and Denise Prescher and Gerhard Weber},
  booktitle={ASSETS '12},
  year={2012}
}
Proximity-based interaction through a long cane is essential for the blind and the visually impaired. We designed and implemented an obstacle detector consisting of a 3D Time-of-Flight (TOF) camera and a planar tactile display to extend the interaction range and provide rich non-visual information about the environment. Users choose a better path after acquiring the spatial layout of obstacles than with a white cane alone. A user study with 6 blind people was analyzed and showed extra time is… 

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