Immersive Displays with Multiple Perspective Views
Depth Perception and Object Presence
SYSTEM DESCRIPTION
Hardware Configuration
Calibration and Scene Model
Dynamic Projection Mapping
Supporting Multiple Views
Interactions
EXPERIENCES
Rendering Virtual Objects
Fireball
Catch
USER EXPERIMENTS
Experiment 1: Object Presence
Experiment Design
Experiment 2: Understanding Collaborator’s Spatial References in a Dyad
In practice, the sense of object presence may depend on a number of factors which are not considered in the user experiments [9]. For example, an object of familiar size and shape such as a tennis ball may be easier to correctly perceive than an abstract, featureless cube. Our own experience with the Fireball and Catch application examples suggest that interacting directly with a virtual object lends a stronger sense of the position and size of the object. For example, when holding a virtual object, it seems as if the higher level, cognitive realization that the object is being held in the hand helps in seeing the virtual object in the hand. This effect may be similar to that of “visual capture” studied in psychology, whereby, for example, a ventriloquist’s voice appears to be coming from a dummy’s mouth. Note that this cue may be stronger than the markers provided in the first experiment: in that task, participants determined which of three physical references indicated the distance of the object. When holding an object, the hand is the one possible physical reference.