In this paper an application designed to simulate the environment seen in a periscope by means of a virtual reality environment is presented. The application allows full viewing of all objects visible from the periscope, sea, ships, airplanes, etc. With the appropriate hardware (3D mouse and tracking systems) it is possible to navigate into the virtual world and interact with the elements. Each...

In this paper, the analysis and design of a motion simulator (based on the approach taken by interactive virtual reality (VR) entertainment systems) is conducted. The main components of the system include a bilateral control interface, simulation and a motion simulator control scheme. The space entertainment system uses a virtual environment that enables operators to feel the actual feedback se...

CONTEXT Whether virtual rehabilitation is beneficial has not been determined. OBJECTIVE To investigate the psychological benefits of virtual reality in rehabilitation. DESIGN An experimental group underwent therapy with a virtual-reality-based exercise bike, and a control group underwent the therapy without virtual-reality equipment. SETTING Hospital laboratory. PATIENTS 30 patients suf...

This paper presents a methodology for observing human skill by using a virtual task space constructed by the haptic virtual reality technology. First a haptic simulator developed for a 2-dimensional pegin-hole assembly operation in the virtual environment is presented. To examine the validity of the simulator, a comparison study between the peg-in-hole task using the simulator and that in the r...

 Virtual Reality (VR) systems allows the design of interactive and immersive environments for the simulation of a wide range of situations. These features has been exploited to build realistic applications in order to provide study and training in several areas, particularly in medicine. In this sense, the addition of techniques to assess the actions of users can provide simulations based on v...

BACKGROUND Several studies have found a positive effect on the learning curve as well as the improvement of basic psychomotor skills in the operating room after virtual reality training. Despite this, the majority of surgical and gynecological departments encounter hurdles when implementing this form of training. This is mainly due to lack of knowledge concerning the time and human resources ne...

Bone marrow transplant is a relatively new procedure to treat recently considered incurable diseases. One important part of the procedure is the process of harvesting the donor bone marrow. We are developing a virtual reality simulator for bone marrow harvest that integrates interactive stereo visualization and force feedback techniques. The main objective is to offer a low cost virtual reality...

DVECS (Distributed Virtual Environment Collaborative Simulator) is used for testing of unmanned underwater vehicles (UUVs) where both real and simulated vehicles can interact and cooperate in a hybrid, synthetic, virtual environment. This virtual reality system can be used to determine: (1) the optimal performance and criteria for the cooperating vehicles and its relative application; (2) the d...