Reaching within a dynamic virtual environment

Building Bridges Activity within a Virtual Environment

Reaching within Video-Capture Virtual Reality: Using Virtual Reality as a Motor Control Paradigm

We have developed a virtual reality (VR) system that integrates a three-dimensional tracking device with a video-capture VR platform to record upper limb movements. The influence of target velocity on planning and execution of reaching movements was studied in five healthy subjects. Our initial results suggest that a target's velocity is considered when planning an interceptive action and that ...

Dynamic Visual Masking in a Virtual Environment

Virtual environments (VEs) offer more than just simulation; they allow us to create perceptual effects not feasible in the real world. Arising from perception research, one technique that can be used is visual masking: under certain temporal and spatial conditions a masking stimulus can be used to prevent explicit, visual awareness of a target stimulus although the target may still be processed...

Dynamic Partitioning for a Distributed Virtual Environment

Advancement in networking technologies and computer graphics enable researchers to experiment and build the distributed virtual environment (DVE) system. In a DVE system, many clients can simultaneously explore a virtual world (which is a high resolution 3D environment representing a real life community) and at the same time, users in this virtual environment can interact with each other and ca...

A Dynamic Virtual Environment for Haptic Interaction

We present a rigid-body simulation for multi-contact haptic interaction. The simulation is designed to make use of modern multiprocessor machines and the framework for this is discussed. An existing haptic rendering algorithm is extended to: facilitate simple implementation on a number of object types, enable the use of arbitrary objects as haptic cursors and allow multiple object contacts on t...