Supporting Autonomous Navigation of Visually Impaired People for Experiencing Cultural Heritage

Abstract

In this chapter, we present a system for indoor and outdoor localization and navigation to allow the low vision users in experiencing cultural heritage in autonomy. The system is based on the joint utilization of dead-reckoning and computer vision techniques on a smartphone-centric tracking system. The system is explicitly designed for visually impaired people, but it can be easily generalized to other users, and it is built under the assumption that special reference signals, such as colored tapes, painted lines, or tactile paving, are deployed in the environment for guiding visually impaired users along pre-defined paths. Differently from previous works on localization, which are focused only on the utilization of inertial sensors integrated into the smartphones, we exploit the smartphone camera as an additional sensor that, on one side, can help the visually impaired user to identify the paths and, on the other side, can provide direction estimates to the tracking system. The users with the help of the navigation system may experience the museum or the cultural site in auton-

A Navigation and Augmented Reality System for Visually Impaired People

“…Moreover, we plan to perform experiments involving blind people, in order to better assess the usability of the proposed system. Since, from the user point of view, ARIANNA+ works in exactly the same way as ARIANNA, we conjecture that the results should be about the same as the ones presented in [ 38 ].…”

Site Experience Enhancement and Perspective in Cultural Heritage Fruition—A Survey on New Technologies and Methodologies Based on a “Four-Pillars” Approach

“…Such a solution allows a visually impaired or blind person to autonomously visit a museum, contributing, consequently, to social inclusion. Some special landmarks (e.g., QRcodes or iBeacons) along the path code can give additional information detectable by the camera [36].…”