VRST

This paper discusses four ways that humans interact with their environments, plus four variables that determine the experience of virtual reality, and also which of the interactions support which of the VR-enhancing variables. Some philosophical issues ...

This paper describes the design and implementation of CAVERNsoft G2, a toolkit for building collaborative virtual reality applications. G2's special emphasis is on providing the tools to support high-performance computing and data intensive systems that ...

The need for a real-world driving problem to guide technology development has long been recognised. However, this does not guarantee the identification of requirements for technology development. This paper argues that a more systematic approach is ...

In this paper we present our Networked Virtual Environment (NVE) System, called W-VLNET (Windows Virtual Life Network), which has been developed on the Windows NT Operating System (OS). This paper emphasizes the Real-Time aspect of this NVE system, the ...

In this paper we present work undertaken by the Advanced Interfaces Group at the University of Manchester on the design and development of a system to support large numbers of geographically distributed users in complex, large-scale virtual environments ...

There are many real-world applications of Virtual Reality that require the construction of complex and accurate three-dimensional models, suitably structured for interactive manipulation. In this paper, we present semi-automatic methods that allow such ...

For virtual reality systems, modeling of 3D objects and scenes is important and challenging. In this paper, we present an image-based interactive 3D modeling framework consisting of three major modules: photogrammetric modeling, human interaction, and ...

Due to visibility change and surface enlargement in producing a novel view from a new viewpoint, 3D re-projection from one reference image in IBMR inevitably produces holes in the destination image. Even worse, exposure errors occur when a background ...

In this paper we present a new framework in Augmented Reality context for rapid evaluation of prototypes before manufacture. The design of such prototypes is a time consuming process, leading t o the need of previous evaluation in realistic interactive ...

We present a new free-form interactive modeling technique based on the metaphor of clay work. This paper discusses design issues and an immersive modeling system which enables a user to design intuitively and interactively 3D solid objects with curved ...

We describe a framework that allows to easily design and implement virtual and augmented reality worlds. Based on a structured design approach for interactive animated 3D conten we want to supply designers and content experts of complex virtual ...

A two-handed 3D styling system for free-form surfaces in a table-like Virtual Environment, the Responsive Workbench (RWB)^TM, is described. Intuitive curve and surface deformation tools based on variational modeling and interaction techniques adapted to ...

The goal of this paper is to optimize interest management for the scalability of networked virtual environments. To remove the needless load of co-presence, the interest manager restricts the consistency of shared virtual space by means of relevance. We ...

The use of Shared Virtual Environments is growing in areas such as multi-player video games, military and industrial training, and collaborative design and engineering. As a result, different mixes of computing power and graphics capabilities of the ...

As distributed virtual environment (DVE) scales in terms of users and network latency, a key aspect to consider is scalability for interactive performance because a large number of objects likely impose heavy burden especially on the network and ...

We propose an enhanced prediction-based concurrency control scheme that supports the scalability of concurrency control for large distributed virtual environments especially where entities are highly populated and tend to gather closely. The prediction ...

Visibility preprocessing is a useful method to reduce the complexity of scenes to be processed in real-time, and so enhances the overall rendering performance for interactive visualization of virtual environments. In this paper, we propose an efficient ...

Current algorithms to create depth of field (DOF) effects are either too costly to be applied in VR systems, or they produce inaccurate results. In this paper, we present a new algorithm to create DOF effects. The algorithm is based on two techniques: ...

In this paper we present a new BSP (Binary Space Partitioning (BSP) tree. BSP trees are one of the most successful space partitioning techniques, since they allow both object modeling and classification in one single structure. In this paper, we present ...

An Interaction Task in Virtual Reality is such that a user can modify a computer generated virtual world using various techniques. But current interaction techniques cannot be applicable for most virtual environments due to their inefficiency and ...

An immersive graph visualization and navigation system is proposed. Its visualization is based on a multiple-focus layout technique using heat models. Virtual temperatures influence the graph layout. The navigation uses a combination of the layout ...

In this paper, we describe a user interface technique that uses a bounding box as a m taphor to facilitate interaction in a Virtual Reality (VR) environment. Because this technique is based on the observation that some of the VR application fields are ...

It is still unclear what, if any, impact virtual reality will have on public education. The virtual reality gorilla system is being used as a testbed to study if and how virtual reality might be use ful as an aid in educating middle school children, and ...

We present a novel approach to creating deformations of polygonal models using Radial Basis Functions (RBFs) to produce localized real-time deformations. Radial Basis Functions assume surface smoothness as a minimal constraint and animations produce ...

The basic ideas for realistic and real-time animation of 3D character are described through three steps. First, we just choose two deformations among all kinds of deformations that happen in the human body, because these deformations are globally ...

This paper introduces web-based 3D media information system. We first address two promising 3D modeling techniques, i.e., image-based 3D modeling and laser scanning based 3D modeling. Especially, we present two approaches of the image-based 3D modeling. ...

With the development of volume visualization methods, we can easily extract meaningful information from volumetric data using interactive graphics and imaging. Haptic interaction of volumetric data adds a new modality to volume visualization that has an ...

This paper proposes a projection-based VR system using the window and camera projection paradigms simultaneously. This technique can be applied to the Driving Simula or, which consists of 6 D.O.F. motion platform and projection screens separated from ...

Continuous advances in computer technology are making it possible to construct virtual environments with an ever-increasing sense of visual realism. What is lacking are interfaces that allow users to manipulate virtual objects in an intuitive manner. In ...

In this paper, we present "PODIUM (POstech Distributed virtual Music environment)", a distributed virtual environment that allows users to participate in a shared space and play music with other participants in a collaborative manner. In addition to ...