Abstract: The present invention relates to a method for calibrating a system (10) comprising an external eye-tracking device (16) and a computing device (12a; 12b) and for capturing the gaze of a user (P) on the screen (13) of the computing device in real-time. The calibration of the system (10) comprises: capturing with one or more cameras (17, 18) of the eye-tracking device (16) at least of one image of landmarks (f1, f2, f3 . . .

Abstract: The present invention relates to a method for capturing and displaying a video stream, comprising: capturing with one or a plurality of cameras a plurality of video streams of a scene, said scene comprising at least one person; reconstructing from said plurality of video streams a virtual environment representing the scene, determining the gaze direction of said person using at least one of said plurality of video streams; projecting said virtual environment onto a plane normal to said gaze direction for generating a virtual representation corresponding to what that person is looking at and from the point of view of that person; displaying said virtual representation on a display.

Abstract: User-input apparatus for head gesture based control comprising: a camera for recording a head of a user; a database for defining a plurality of gestures of the head of the user and for relating at least some of the defined gestures to a corresponding user command; a detector for detecting one of the gestures defined in the database in the recording of the camera; a controller for identifying a user command in the database related to the detected gesture and for giving out the user command related to the detected gesture; wherein one of the defined gestures of the head is a switching gesture and one of the user commands is a switching command related to the switching gesture, wherein, when the switching command is given out from the controller, the user-input apparatus switches between a use mode for the head gesture based control and a settings mode.