Why a display should be physical in the first place? Immaterial mid-air displays are more suitable for many situations than impenetrable monitors or display walls. Interactive mid-air projection screens in various sizes are becoming feasible alternatives for displaying information and interacting with it. We have created a Kinect-based interactive and virtual reality system for the FogScreen. W...

The commercial success of color sequential displays is limited by the fact that people perceive multiple color images during pursuit and saccadic eye movements. We conducted a psychophysical experiment to quantify visibility of these color artifacts for different saccadic speeds, display background brightness, and target size. An Infocus sequentialcolor projector was placed behind a projection ...

In this paper we describe the technical framework of an environment that allows the user to interact with virtual scenes in an unencumbered way. The application involves real-time human body recognition in front of a large rear projection screen, where strong use of the physical space and pointing gestures are used to direct the scene. We will describe the overall system, the objectoriented des...

Though considerable progress has been made with the view-dependent techniques in terrain visualization, the CPU overhead still precludes their wide application in many domains. The calculation complexity of viewdependent techniques mainly involves the calculation of node screen space error every frame, including the time-consuming screen space projection, the number of nodes whose projection er...

Markerless optical motion tracking is the method of choice if you don’t want to use expensive tracking hardware or invasive equipment in a VR-System. Combined with silhouette-extraction based on background subtraction realtime interaction is reachable. But most methods using this scheme are most likely unable to adapt their background model to the fast changing unpredictable images shown on a p...

INTRODUCTION Moderate capability simulators such as Laerdal's SimMan allow for the operator to control the vital signs presented on the monitor. However, the presence of the mannequin simulator may not always be needed to achieve specific teaching goals. In this report, we describe the use of the SimMan software to generate, control, and project vital signs on a projector screen, with an appear...

A recent advancement was achieved in the integration and miniaturization of a binocular head-worn projection display (HWPD) conceived for fully mobile users. The devised display, referred to as Mobile HWPD (M-HWPD), offers see-through capability through custom-designed, light-weight projection optics and an integrated commercial-off-the-shelf (COTS) retro-reflective screen to display full color...

Markerless optical motion tracking is still a challenging task; especially applied for interactive environment there real-time is required. Tracking methods based on silhouette extraction seem to have the ability for robust real-time detection. But most background subtraction methods are unable to adapt their background model to the fast changing unpredictable images shown on a projection scree...