1. A computer-implemented method for tracking objects in a scene comprising: receiving visual-based information of the scene with a vision-based tracking system; receiving telemetry-based information of the scene with a real time locating system (RTLS)-based tracking system; and when each of the visual-based tracking system and the RTLS-based tracking system cannot independently identify a location and an identity of a first object in the scene, determining the location and the identity of the first object in the scene by fusing the visual-based information with the telemetry-based information independent of a past trajectory of the first object.