Multi-projection plane Immersive Virtual Environment and Its Applications – more
Introduction More immersive projection plane is a virtual environment to support multi-user virtual environment, different from the virtual environment it can provide a wide range of users to view high-resolution, high-quality stereo images. System in a variety of user interaction devices have excellent support and can provide interactivity to the user an unprecedented immersion. immersive virtual environment more projection plane to multiple high-bandwidth, high-resolution Projector Based on providing high-quality three-dimensional image projector, projection plane between the different applications according to the needs of a variety of combinations of different types of ways to form different types of virtual environments.
Illusion of immersion is the user's perceptual system by the virtual environment virtual stimulus level, the system senses the more it can confuse users, the system the more immersive. Immersive virtual reality system's history goes back to 1965 years from the Computer Graphics academic pioneer, Dr. I. Sutherland, in his paper published UltimateDisplay helmet mounted display (HeadMountedDisplay, HMD). Paper, Dr. Sutherland noted that the computer screen like a window leading to the virtual world through which we can observe a virtual World [1]; but we can allow users to directly immersed in the computer-generated virtual environment: when the user naturally turn his head, he saw computer-generated virtual scenes can also be corresponding changes happen real time; Users can also in a natural way interact with the virtual world. HMD is a function of the system to achieve the above, two display screens in a user wearing the helmet will be the vision of both eyes were covered by the user, so users only can sense from the computer the resulting image, when the user point of view moving images generated by the computer will change accordingly, thus providing the user a kind of immersion in computer-generated virtual world immersion.
HMD system because there are several shortcomings, such as: single-user limitations, the display screen resolution is not high, because a helmet is too heavy a burden as well as the screen gives the user nearly brought the eye discomfort. So in 1991 , UniversityofIllinois of DeFanti and Sandin for HMD's shortcomings, an improved display of immersive virtual environments: Virtual environments boom (BOOM, BinocularOmni-OrientationMonitor), it displays the boom support, can provide users high-resolution, high-quality images but also for users without the weight of the burden. But the system or a single-user virtual environment and does not solve the screen too close to the user discomfort caused by the eye [2].
1992 DeFanti, Sandin, and Cruz-Neira presented CAVE system, a four immersive virtual reality environment. Systems support multiple users in solving the above system while the user eye discomfort caused by the problem. CAVE is 4 Surface Surround Projection screen Composed of immersive virtual reality system. For users in the system, the projection screen will cover the user's front, left and right, and bottom view, constitute a side length of 10 feet cube. As projection plane almost to cover the user All vision, coupled with the sound and user interaction facilities, CAVE can provide to users an unprecedented sense of immersion with shocking [3].
The proposal from the beginning CAVE, various types of projection-based immersive virtual reality has emerged: for example, Germany in 1993, GMD's ResponsiveWorkbench [4] system is a single projection plane, three-dimensional image through the mirror's reflection projected onto a horizontal projection plane, the user can work in this plane to interact with virtual objects. UniversityofIllinois in 1994 by the proposed ImmersaDesk [5] system is also a similar ResponsiveWorkbench single projection plane immersive virtual reality environment, the whole system similar to the design table, it's projection into a plane and the horizontal angle, so convenient for the user to interact with virtual objects.
Relative to the single projection plane systems, multi-user projection plane system to cover more of the field of view to provide better immersion, so much projection plane system, immersive virtual environment has also become the main direction of development. Germany GMD on dual projection plane made its ResponsiveWorkbench improvements based on the projection plane at the level of the additional vertical projection plane, which increases the user's virtual field of view. UniversityofMinnesota 1994 proposed PowerWall [6] systems of multiple projection stacked or side by side forming a single surface area of the larger projection plane, which can provide high-resolution images of large areas, mainly used in scientific data visualization. UniversityofIllinois in 1995 of InfinityWall [7] also a similar Projection Plane in Multi PowallWall immersive virtual environment, with multiple projection plane constituted a large projection surface, mainly used for multi-user display of work.
Improvements in the CAVE system, 5 or 6 side surface CAVE systems have been proposed. For example: IowaStateUniversity the C6 and the COSMOS Gifu, Japan VRTechnoPlaza systems such .6 a projection plane of the CAVE system has been able to fully cover all of the users field of view, allowing users to generate completely immersed in the virtual environment. There is also a projection to a cylindrical or around the projection plane of the system, mainly used in the virtual theater, providing support for large users. such as Korea Institute of KyongjuVRTheater [8] and Germany, GMD's iCone.
As immersive virtual environment, multi-projection plane need to generate high resolution real-time three-dimensional images, the traditional system is driven by professional graphics workstation, which resulted in such systems cost too expensive. The PC Performance at an unprecedented pace, the current high-performance PC in computing power and graphics capabilities have been able to move closer to or exceed the professional graphics workstation. Therefore, a recent research direction is to networked PC-driven immersive virtual environment more projection plane. to PC instead of the more expensive graphics workstations can substantially reduce the cost of the system. such research work are: Georgia Institute of Technology NAVE system [9], Germany FraunhoferIAO the HyPI-6 system [10], and CAD & Zhejiang University CG State Key Laboratory of PCCAVE system [11].
We are high quality suppliers, our products such as Sheet Metal cabinet Manufacturer , Turned parts Supplier for oversee buyer. To know more, please visits machining parts Manufacturer.
Processing your request, Please wait....
