Development of algorithms and application solutions using time-of-flight (TOF) 3D cameras for detection & recognition of surfaces and objects, such as tracking and highly accurate, non-intrusive counting of people, including but not limited to* Security - actual count of individuals inside a building / room- tracking & detection of individuals passing through one-way passages- real-time distribution of individuals within a room or building* Traffic - count, volume and height-discrimination of individuals through a defined area* Infrastructure- acquisition & recording of large surfaces such as road surfaces or tunnels for detection of structural defects