Real-time gait assessment with an active depth sensor placed in a walker

Assisted gait monitoring can benefit from the measurement of feet positions and orientations. Thus, in this paper, rollator type walkers are equipped with one active depth sensor for gait assessment. Also, a real-time feet positions and orientations algorithm is proposed and a gait assessment method is provided for clinical evaluation purposes. Results using the proposed algorithm are compared with motion capture system, as reference data (ground truth) and tested with hospitalized elderly. The proposed gait assessment was able to extract important frail elderly gait characteristics.