The shot is a code developed by the University of Cambridge circular 2D code that can be detected and evaluated by ( mobile ) cameras.
The shot -code technology was developed at Cambridge University in 1999. First, a system was created under the name spot code that makes it possible to identify with the camera of a mobile phone has a round bar. In 2003, the company was founded in High Energy Magic, which should attract commercial benefit from the research results of the Cambridge University. High Energy Magic sold the technology in 2005 to complete OP3, which subsequently changed its name to shot code. Heineken was the first company that took this shot codes on their billboards.
The shot code consists of a central point, which is orbited by barcode -like rings. Recognition software measures increase the distance and the angle of the blocks to the central point. The resulting bit pattern of 49 bits can be read by the round shape from every angle. For this, the camera of a mobile phone or a webcam is sufficient. The bit pattern is then transferred to a server, which has ( for example, a URL) associated with the corresponding code information and can transmit this to the client.