Multi-modal tracking by identification

In this paper, we demonstrate, by performing quantitative evaluation, the benefit of tracking by identification over state-of-the-art identification by tracking. We evaluate four localization and tracking systems: a commercial localization system based on radio technology, a state-ofthe- art computer-vision algorithm that uses multiple calibrated cameras to perform identification by tracking, and two multi-modal tracking-by-identification systems that have been developed in our laboratory. We briefly describe all four systems and evaluation metric, and present evaluation on a challenging indoor dataset.