Visual Cues For Imminent Object Contact In Realistic Virtual Environments
Helen H. Hu, Amy Ashurst Gooch, William B. Thompson, Brian E. Smits, John J. Rieser, Peter Shirley · 2000
Distance judgments are difficult in current virtual environments, impacting their effectiveness in conveying spatial information. A situation in which this problem is apparent is when contact occurs while a user is manipulating objects. In particular, the computer graphics used to support current generation immersive interfaces does a poor job of providing the visual cues necessary to perceive that contact between objects is about to occur. This perception of imminent contact is very important in human motor control. Its absence prevents a sense of naturalness in interactive displays which allows for object manipulation. This paper reports results from an experiment evaluating the effectiveness of binocular stereo, cast shadows, and diffuse interreflections in signaling imminent contact in a manipulation task. CR Categories: I.3.7 [Computing Methodologies ]: Computer Graphics---3D Graphics, Virtual Reality Keywords: Virtual Reality, Head Mounted Displays, Human Visual Perception 1 I...