Space browsing interface based on head posture information

We propose an interface to browse 3D virtual space in a human scale virtual environment using a scrolling technique. Our method is based on head posture estimation by processing the image of an oval marker. Because the marker is attached to a cap, the user can wear the marker easily and naturally. Our method feels natural because the direction of scrolling is consistent with the user´s direction of attention. The estimation of the position and direction of the marker is based on image moment features which makes the system robust to noise and allows real-time operation without any special hardware