This paper describes an auto-stereoscopic VRML viewer for a stereoscopic display without any glasses called “Rear Cross Lenticular 3D display (RCL3D display).” By presenting a virtual environment directly on the 3D display, people feel the depth of environment just as the physical model. In the “net-surfing,” this viewer automatically generates a pair of stereoscopic images from VRML2.0 data on...

We define Augmented Reality (AR) as a real-time direct or indirect view of a physical real-world environment that has been enhanced/augmented by adding virtual computer-generated information to it [1]. AR is both interactive and registered in 3D as well as combines real and virtual objects. Milgram’s Reality-Virtuality Continuum is defined by Paul Milgram and Fumio Kishino as a continuum that s...

Interactive 3D visualization has found myriad applications in flight simulation, scientific visualization, training and education. This article reviews recent advancements in creating interactive augmented virtual environments that integrate digital information into the fabric of the physical world and enhance our sensory perceptions. physician is evaluating a patient lying on an exam table. To...

Augmented environments superimpose computer enhancements on the real world. Such augmented environments are well suited for collaboration of multiple users. To improve the quality and consistency of the augmentation the occlusion of real objects by computergenerated objects and vice versa has to be implemented. We present methods how this can be done for a tracked user's body and other real obj...

BACKGROUND Virtual bronchoscopy software is now available to district general hospitals (DGHs). There is limited information on the clinical utility of virtual bronchoscopy and whether it offers any additional information over conventional axial computed tomography in the setting of a busy DGH chest unit. METHODS Virtual bronchoscopy and computed tomography findings were compared in all patie...

In virtual environments, perceived egocentric distances are consistently underestimated when compared to the same distance judgments in the real world. The research presented in this paper explores two possible causes for the compressed distance perception in virtual environments: (1) real-time computer graphics rendering, and (2) immersive display technology. Our results show there is a signif...

Rendering and animating in real-time a multitude of articulated characters presents a real challenge and few hardware systems are up to the task. Up to now little research has been conducted to tackle the issue of real-time rendering of numerous virtual humans. However, due to the growing interest in collaborative virtual environments the demand for numerous realistic avatars is becoming strong...

Recently, according to the advanced hardware technology, the price of sensors in HMD (Head Mounted Display) is getting cheaper and calculation speed in smartphone is fast enough to express a plausible virtual reality. Users wear the HMD device on their head and it shows the virtual scenes in front of users. Users can enjoy a wide display without any restrictions in space. Based on this device, ...