Tyrex | Project

Mixed Reality Browser

Mixed Reality Browser

MRB displays PoI (Point of Interest) content remotely through panoramics with spatialized audio, or on-site by walking to the corresponding place; it can be used for indoor-outdoor navigation, with assistive audio technology for the visually impaired. It is the only browser of geolocalized data to use XML as a native format for PoIs, panoramics, 3D audio and to rely on HTML5 both for the iconic and full information content of PoIs. Positioning in MRB is based on a PDR library, written in C++ and Java and developed by the team, which provides the user’s location in real time based on the interpretation of sensors. Three main modules have been designed to build this positioning system: (i) a pedometer that estimates the distance the user has walked and his speed; (ii) a motion manager that enables data set recording and simulation but also the creation of virtual sensors or filters (e.g gyroscope drift compensation, linear acceleration, altimeter); and (iii) a map-matching algorithm that provides a new location based on a given OpenStreetMap file description and the current user’s trajectory.


GitHub Benchmarks Attitude on Smartphones
We investigate the precision of attitude estimation algorithms in the particular context of pedestrian navigation with commodity smartphones.

GitHub Google Play Senslogs (Android)
This android application records and store values from internal sensors.

GitHub Senslogs (iOS)
This iOS application records and store values from internal sensors.

Youtube Venturi - Y3
Grenoble AR-Tour based on geolocation.



  • [CONFERENCE] A Comparative Analysis of Attitude Estimation for Pedestrian Navigation with Smartphones [HAL, PDF, Abstract]

    Thibaud Michel, Hassen Fourati, Pierre Genevès, Nabil Layaïda
    Indoor Positioning and Indoor Navigation, Oct 2015, Banff, Canada. 2015 International Conference on Indoor Positioning and Indoor Navigation, pp.10, 2015, <http://www.ucalgary.ca/ipin2015/>
  • [CONFERENCE] Personal Shopping Assistance and Navigator System for Visually Impaired People [HAL, PDF, Abstract]

    Paul Chippendale, Valeria Tomaselli, Viviana D'Alto, Giulio Urlini, Carla Maria Modena, Stefano Messelodi, Sebastiano Mauro Strano, Günter Alce, Klas Hermodsson, Mathieu Razafimahazo, Thibaud Michel, Maria Farinella Giovanni
    ACVR2014: Second Workshop on Assistive Computer Vision and Robotics, Sep 2014, Zurich, Switzerland. <http://www.ino.it/ACVR2014/>
  • [JOURNAL] Mobile Augmented Reality Applications for Smart Cities [HAL, Abstract]

    Mathieu Razafimahazo, Nabil Layaïda, Pierre Genevès, Thibaud Michel
    ERCIM News 98, 2014, ERCIM News 98, pp.45-46
  • [CONFERENCE] Mixed Reality Browsers and Pedestrian Navigation in Augmented Cities [HAL, PDF, Abstract]

    Jacques Lemordant, Thibaud Michel, Mathieu Razafinahazo
    The Graphical Web Conference, Oct 2013, San Francisco, United States. 2013