Abstract: An apparatus to provide AR includes a marker recognition unit to recognize objects in reality information, an amalgamation determining unit to determine whether the objects are amalgamated, an amalgamation processing unit to determine an attribute of each of the recognized objects and to generate an amalgamated object based on the determined attributes, and an object processing unit to map the amalgamated object to the reality information and to display the mapped amalgamated object. A method for amalgamating objects in AR includes recognizing objects in reality information, determining whether the objects are amalgamated, determining an attribute of each of the recognized objects, generating an amalgamated object based on the determined attribute, mapping the amalgamated object to the reality information, and displaying the mapped amalgamated object.

Abstract: A user interface apparatus using three-dimensional axes and a user interface apparatus using two-dimensional planes, each of the two-dimensional planes being formed by two of three-dimensional axes, are provided. The user interface apparatus uses the three-dimensional axes or the two-dimensional planes to select a menu or to search for desired information in a device, such as a mobile terminal.