Virtual Environment

Topics: Virtual reality, Cave Automatic Virtual Environment, Construction Pages: 10 (2133 words) Published: January 28, 2014


WELCOME TO VIRTUAL REALITY

Virtual Reality, (2013)

Contents

1. Introduction ………………………………………………………………………………3

2. Research Summary………………………………………………………………………3

2.1 Immersive Virtual Environment Technology CAVE………………………………4

2.2 Semi Immersive Systems Powerwall………………………………………………..5

2.3 Characteristics…………………………………………………………………………..5

2.4 Benefits…………………………………………………………………………………..5

3. Comparison System Characteristics………………………………………………….6

3.1 Immersiveness………………………………………………………………………….6

3.2 Field of View……………………………………………………………………………6

3.3 Resolution……………………………………………………………………………….6

3.4 Interaction………………………………………………………………………………6

3.5 Size and space………………………………………………………………………….6

3.6 Cost……………………………………………………………………………………….7

4. Benefits using these systems in the construction industry………………………7

4.1 Design……………………………………………………………………………………7

4.2 Construction…………………………………………………………………………...8

4.3 Maintenance……………………………………………………………………………8

4.5 Conclusion………………………………………………………………………………8

5. References…………………………………………………………………………………9-10

1 Introduction

Virtual reality technologies are becoming widely used in the construction industry for 3D modeling, urban regeneration and planning. It is also being used on infrastructure projects, including roads and railway networks. VE is an advanced man-machine interface of computer technology. This offers innovative solutions to futuristic and existing challenges in numerous fields. The following article will discuss the various types of virtual environment technologies during the construction project’s life cycle.

Jennifer Whyte, (2002), stated in her book that virtual reality systems support the use of an interactive, spatial, real-time medium and are comprised of the computer hardware and software, the input and output devices, the data and the users. These systems are classified as immersive, non-immersive or augmented reality. The two systems that have been chosen in this article for further analyzing are immersive and semi immersive.

2 Research Summary

Immersive systems totally surround the user, supposedly providing an unmediated experience. They do this through specialist hardware such as head-mounted and large wall-mounted displays. They require high-end computing power to provide a high realism environment. (Jennifer Whyte, 2002)

Immersive Technologies
Head-mounted displays
Computer augmented virtual environment (Caves)
Input Devices
Data gloves
Joy sticks, 3D mice
Semi Immersive
Semi-immersive virtual reality is a relatively new development in the world of VR technology. It has a few advantages over fully immersive systems such as a CAVE system, which includes cost, ease of use and logistics. But it has its disadvantages as well, which include limited range of interaction devices and problems with multi-user applications.

Out of these systems computer augmented virtual environment is the one we will discuss the characteristics and its function.

2.1 Immersive Virtual Environment Technology CAVE

Computer augmented virtual environment- CAVE systems
This is the most common visual display system used. The CAVE is a high-resolution 3D environment; which is used in an immersive interactive setting. Users enter a room or enclosure where they are surrounded by large screens that project a nearly continuous virtual scene.  In order to achieve realistic interaction the tracking system must provide smooth and precise 6-DOF data of the user’s head and hand movements while not detracting from the user’s immersive experience. InterSense (2013) describes the main features of this product, the IS-900 system offers ergonomically designed devices that include a head tracker that attaches to stereo glasses and a tracked wand incorporating buttons and a joystick for interaction with the virtual content. These...

References: Books
Jennifer Whyte, (2002), Virtual reality and the built environment, Oxford
InterSense, (2013), Powerwall, Available: http://www.intersense.com/pages/11/70/, Last accessed 9th Nov 2013
LCSE.UMN.EDU, (1998)
Worldviz, (2013), Projection Walls, Available: http://www.worldviz.com/systems/projection-wall#Features, Last accessed 12th Nov 2013
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