Enhancing tracking performance in a smartphone-based navigation system for visually impaired people

Daniele Croce, Ilenia Tinnirello, Laura Giarre, Daniele Croce, La Rosa, Montana, Ilenia Tinnirello, Laura Giarré

Research output: Chapter in Book/Report/Conference proceedingConference contribution

16 Citations (Scopus)


In this paper we show how to enhance the tracking performance of Arianna, a low-cost augmented reality system designed to meet the needs of people with problems of orientation, people with sight impairment and blind people. For augmented reality system we mean the design of: i) a set of paths and tags to be deployed in the environment, realized in various ways depending on the context (decorative elements easily identifiable, colorful stripes, QR code, RFID, etc.); ii) an instrument of mediation between the reality and the user (typically a smartphone) to access the information disseminated in the environment by means of a camera and provide a vibration feedback signal to the users for following pre-defined paths. In this paper we explore the possibility of applying optical flow techniques to the sequence of images captured by the camera along the paths, to identify the user movements and provide a position estimate. Experimental results show that the approach is promising.
Original languageEnglish
Title of host publication2016 24th Mediterranean Conference on Control and Automation (MED)
Number of pages6
Publication statusPublished - 2016

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Control and Optimization
  • Modelling and Simulation


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