Patent ID: 11887151
Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Field: IT methods for management (Electrical engineering)
Classification: CPC G | IPC G

Claim 9:
10. An apparatus for providing content with an advertisement disclosure for advertisement identification, comprising:
an interface unit configured to display, in a three-dimensional space, the content including a plurality of virtual objects;
a gaze detection unit configured to track a user's pupil and to detect a user gaze indicating a direction in which the user looks at one or more of the virtual objects; and
a control unit configured to detect, from the content, an advertisement object located within a user sight, to insert the advertisement disclosure for advertisement identification in an adjacent position to the advertisement object, and to control the advertisement disclosure in position or direction based on the user gaze,
wherein the control unit is configured to generate, in a three-dimensional space, a triangle using an origin, user coordinates, and advertisement disclosure coordinates obtained by the inserting of the advertisement disclosure, generate orthogonal projections for the triangle on an x-y plane, a y-z plane and a z-x plane, respectively, calculate a direction of rotation and an angle of rotation of the advertisement disclosure for each of the orthogonal projections using a matrix operation, and control the advertisement disclosure to rotate by the direction of rotation and the angle of rotation, for rendering the advertisement disclosure to face the user.