COVID-19 contact tracking by group activity trajectory recovery over camera networks

An analysis of the spatio-temporal behavior of COVID-19 patients using activity trajectory data

“…However, analyzing and comparing the spatial activity trajectories and spatiotemporal behavior of patients is an essential technical task for virus tracing and transmission chain reconstruction. Comparison of patient and population activity trajectories provides a crucial scientific basis for identifying groups at risk of infection [ 5 , 23 ]. As more specific transmission patterns are discovered, the significance of small-scale, precise trajectory analysis increases.…”