BACKTRACKING INDOOR TRAJECTORIES USING MOBILE SENSORS

摘要

The present subject matter relates to a computing device (104) and method intended to provide fine-grained continuous location tracking for non-real time uses (e.g., for retracing the movement of office employees). As per the subject matter, the knowledge of an office layout is combined with the application of particle filters (PFs) over inertial tracking (using compass, accelerometer and gyroscope sensors) data. Viterbi-based path-likelihood maximization is integrated with PF framework to progressively reduce the uncertainty in the movement track of an individual computing device (104).