1.8 gigapixel camera, but for the Army only

The guys at DARPA have developed a neat camera for ground surveillance of the battlefield: The ARGUS-IS (Autonomous Realtime Ground Ubiquitous Surveillance – Imaging System). This is a digital camera that can be strapped under a helicopter at a 15,000 feet altitude and provides an amazing view. Actually, not all the data (1.8 giga-pixels by 15 frames/s) is streamed down to HQ, but up to 65 independent video windows are tracked simultaneously.

Source: Engadget.