US Patent 7474318 Interactive system and method

An interactive system for interacting with a device in a mixed reality environment, the system comprising an object having at least two surfaces, each surface having a marker, an image capturing device to capture images of the object in a first scene, and a microprocessor configured to track the position and orientation of the object in the first scene by identifying a marker. In addition, the microprocessor is configured to respond to manipulation of the object causes the device to perform an associated operation.