Interactive entertainment system

A method of calibrating a camera comprising:

• positioning a calibration target within a field of view of a camera;
• capturing, by the camera, an image of the calibration target;
• determining a difference between the image of the target and a physical characteristic of the calibration target;
• determining a characteristic of the camera based on the difference;
• and
• moving the target automatically by an actuator on a predefined path within the field of view of the camera.

A method of calibrating a camera system comprising:

• positioning a calibration target in a physical environment within a field of view of a plurality of cameras;
• capturing, by each of the plurality of cameras, an image of the calibration target;
• determining a reference point in the image;
• determining a respective position of the reference point with respect to each of the plurality of cameras;
• adjusting position information of the camera based on the respective position of the reference point;
• constructing a virtual representation of the field of view in three dimensions based on the reference point in the physical environment.

A system for augmenting a user experience comprising:

• a wearable article adapted to be worn by a person, a wearable article including:
• a processing element that encodes data related to a virtual characteristic of the wearable article,
• a transmitter that transmits the encoded data to an entertainment environment;
• a detector in the entertainment environment that detects the transmitted data;
• a processing element that receives the data detected by the transmitter and changes a characteristic of the entertainment environment according to the virtual characteristic of a wearable article.