Národní úložiště šedé literatury Nalezeno 2 záznamů.  Hledání trvalo 0.01 vteřin. 
Eye Tracking During Interaction with a Screen
Pavelková, Alena ; Kajan, Rudolf (oponent) ; Herout, Adam (vedoucí práce)
This work presents system for real-time tracking of computer screen and estimating location of user's gaze on this screen with the use of eye-tracking data from a head-mounted eye-tracker and Uniform Marker Fields. The designed system localizes the computer screen in the frames from eye-tracker's front camera using a fragment of Uniform Marker Field displayed on the screen. The marker is hidden after its successful detection and natural feature points from the camera frame lying on the computer screen or, optionally, from the whole frame, are used for tracking the screen. If the natural features tracking fails, marker is displayed again and the tracking is re-initialized. In order to make the marker as unobtrusive as possible, gaze information is used to display the marker as far from the area of user's visual attention as possible. To evaluate the performance and accuracy of the implemented system and the influence of marker appearing on the screen on user's ability to perform his work, several experiments and user testing were conducted.
Eye Tracking During Interaction with a Screen
Pavelková, Alena ; Kajan, Rudolf (oponent) ; Herout, Adam (vedoucí práce)
This work presents system for real-time tracking of computer screen and estimating location of user's gaze on this screen with the use of eye-tracking data from a head-mounted eye-tracker and Uniform Marker Fields. The designed system localizes the computer screen in the frames from eye-tracker's front camera using a fragment of Uniform Marker Field displayed on the screen. The marker is hidden after its successful detection and natural feature points from the camera frame lying on the computer screen or, optionally, from the whole frame, are used for tracking the screen. If the natural features tracking fails, marker is displayed again and the tracking is re-initialized. In order to make the marker as unobtrusive as possible, gaze information is used to display the marker as far from the area of user's visual attention as possible. To evaluate the performance and accuracy of the implemented system and the influence of marker appearing on the screen on user's ability to perform his work, several experiments and user testing were conducted.

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