To protect borders and strategic facilities, 3D-GUARD–Advanced 3 Dimensional Video Motion Detection System provides 24/7 automatic detection of and alerts for moving targets/intruders. This day/night system, comprising 2 stationary cameras (thermal imagers, uncooled IR, or dual day TV) with fixed fields-of-view, has detection range of up to 1,000 m and uses algorithms to automatically calculate data collected from dedicated area and target itself to minimize false alarms.