While video cameras prove reliable for people counting, there are often privacy concerns with collecting this data. And, it's not always reliable. What if people are outside of the field of view?
Bluetooth and radio frequency identification (RFID) require extensive personnel and infrastructure to be effective, adding both cost and complexity to implementation.
Density, a cloud-based people counting solution, remains mindful of personal privacy, while taking accurate measurements of people entering a pace. See how it works in this video.