DONIKIAN S.: Camera motions improve the sensation of walking in virtual environments

This paper investigates the use of camera motions, in order to improve the sensation of walking in a Virtual Environment. A simple model of camera motion is first proposed. This model uses: (1) oscillating motions for the position of the camera, and (2) a compensation motion which changes the orientation of the camera and simulate oculomotor compensation to keep a constant focal point when walking. Then we describe two experiments which were conducted to study the characteristics of our model and the preference of the users in terms of sensation of walking. The first experiment compared the use of oscillating camera motions along the three directions of space. The oscillating motions were all preferred to the control condition (i.e. a linear motion, as if the user was driving a car). Furthermore, the participants preferred oscillating motion