Remark's all-in-one safety solution unifies information from visitors’ health, and venue real-time surveillance to provide a health safety venue for work, school, hospital, transportation, shopping, entertaining etc. Our video analytical engine applies video analytics technology from check-in though out the whole venue surveillance. The check-in access control service combines face recognition (even under mask), mask detection, people counting, and social distance together with temperature screening and symptom history, to protect venue in the first line from strangers or intruders in block list, or persons in quarantine.