A 3D image system for displaying a 3D image, for example, an experience learning system projects a user's image in spaces including a subway station, a museum, and the like which are implemented virtually by using 3D and thereafter, enables a user's image object projected on a 3D content screen according to a user's actual action to visit the museum or learn English with a native speaker in line with a 3D content screen while performing a predetermined appointed action.
In this system, accuracy and stability of extracting a person image exert a great influence on total system performance. In the existing background subtraction based technologies, an object can be effectively extracted with a somewhat small calculation amount, but the system needs to be initialized whenever the system is driven and using a blue screen, and the like are disabled due to a feature of the system in which an experiencer's image needs to be extracted.
In the experience learning system, a learner that performs an experience and learners who perform learning while viewing the learner are present due to the feature thereof. In the existing object extracting system, it is possible to extract all users reflected on a viewing angle of a camera, but it is difficult to selectively extract a specific user.