Blind User Perspectives on a Navigational Autonomy Aid

  title={Blind User Perspectives on a Navigational Autonomy Aid},
  author={Saleh Alghamdi and Ron G. van Schyndel and Margaret Hamilton},
In previous papers, a navigational system was presented (NAAB), which was built upon two technologies: RFID tags and QR-codes. It was tested by sighted people and reached a high level of satisfactory results identifying the current position of the user with an accuracy of less than 2 m in most cases, and guiding users safely to a desired destination. The new positioning technique is based on line-of-sight QR-code detection, and non-line-of-sight signal attenuation of active RFID tags using a… CONTINUE READING