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All of these researchers use Internet 2. Internet 2 is the successor to the "commodity Internet", as the existing Internet is now known. Internet 2 is a collaborative project, overseen by the University Corporation for Advanced Internet Development, and worked on by US universities and a number of government agencies and corporate sponsors. You have a very important meeting with your business associates in Chennai. However you have visitors from Japan coming to ink a mega business deal the same day.
Simulated environment to replicate real time movements. By combining cameras and Internet telephony, video conferencing has allowed real time exchange of more information than ever, without physically bringing each person into one central room. It described a graphics display that would allow the user to experience a completely computer rendered environment. In , Abilene, a backbone research project, was launched and now serves as a base for Internet2 research.
The head of advanced network and services proposed tele-immersion at the application that could drive internet2 research forward.
That is how the national tele-immersion initiative as formed in may, researchers at the Universities of North Carolina UNC , the Universities of Pennsylvania and advanced network and services reached a milestone in developing this technology.
Today scientists are still developing this new communication technology.
There are several groups working together on the national tele-immersion initiative NTII to make this wonderful technology available to the common men. At the other end, the people, who appeared as 3d image, where tracked with and array of 8 ordinary video cameras while three other video cameras captured real life patterns projected in each room to calculate distance.
This enabled the proper depth to the recreated on the screen. So if an observer move here head to the left, she could see the corresponding image that would be seen if she were actually in the room with the person on the screen.
Views of cameras Teleimmersed Scientists are developing new technologies support this type of communication. The images were split and polarised to create a slightly different image to each eye, much like an old-fashioned 3D movie. Welch wore glasses differently oriented polarising lenses so his left eye saw one image right eye the other, which his brain combined to produce 3D images. A head-mounted tracker followed Welch's movements and changed the images on the screens accordingly.
Like the first transcontinental phone call, the quality was scratchy, also jerky, updating around three times a second rather than 10, the minimum speed needed to capture the full range of facial expressions. It only worked one-way: the people in Armonk and Philadelphia couldn't see Chapel Hill. All this may sound like conventional videoconferencing.
But Teleimmersion is much, much more. Where videoconferencing delivers flat images to a screen, Tele-immersion recreates an entire remote environment. The goal of TIDE is to employ TeleImmersion techniques to create a persistent environment in which collaborators around the world can engage in long-term exploration and analysis of massive scientific datasets.
Their presence will be depicted by life-like representations of themselves avatars that are generated by real-time, image capture, and modeling techniques. The environment will persist even when all the participants have left it. The environment may autonomously control supercomputing computations, query databases and gather the results for visualization when the participants return.
Participants may even leave messages for their colleagues who can then replay them as a full audio, video and gestural stream. All users are separated by hundreds of miles but appear collocated able to see each other as either a video image or as a simplified virtual representation commonly known as an avatar. Each avatar has arms and hands so that they may convey natural gesture such as pointing at areas of interest in the visualization. Digital audio is streamed between the sites to allow them to speak to each other.
That is, when a client is connected to the TIS, a user can work synchronously or asynchronously with other users. The environment will persist even when all participants have left it. The server also maintains the consistent state that is shared across all participating TICs.
Finally the TIS stores the data subsets that are extracted from the external data sources. The data subsets may consist of raw and derived data sets, three dimensional models or images. The TIC also provides the basic capabilities for streaming audio and video, and for rendering avatars to allow participants to communicate effectively with one another while they are immersed in the environment.
The databases may house raw data, or data generated as a result ofcomputations. In most cases the data-sets contain too many dimensions and are much too large to visualize entirely. However data mining may be employed to clean the data, to detect specific features in the data, or to extract trends from the data. In some cases as the data mining processes may generate models of the data, the models can be used to make predictions on missing data points.
Furthermore the models can be used to determine which attributes in a multidimensional data-set are the most significant. This is particularly valuable for visualization because the ability to fill missing data points means a more accurate estimate of the missing data can be made than by simple graphical interpolation. Collaborative mechanical CAD applications as well as different medical applications are two that will benefit significantly. Tele-immersion may sound like conventional video conferencing.
But it is much more.
Where video conferencing delivers flat images to a screen, Tele-immersion recreates an entire remote environment. Although not so, Tele-immersion may seem like another kind of virtual reality. Virtual reality allows people to move around in a pre-programmed representation of a 3D environment, whereas Tele-Immersion is measuring the real world and conveying the results to the sensory system.
Page 7 5. Through these portals, they could peer into the offices of colleagues hundreds of miles away, in life-sized three dimensions and real time. It was as if they had teleported distant chunks of space into their laboratory. The experiment was the first demonstration of Tele-immersion, which could radically change the way we communicate over long distances. Tele-immersion will allow people in different parts of the world to submerge themselves in one another's presence and feel as if they are sharing the same physical space.
It's the real- world answer to the StarTrek Holodeck, the projection chamber on the Starship Enterprise where crew members interact with projected images as if they were real.
At Chapel Hill, there were two large screens, hung at right angles above desk, plus projection cameras and head tracking gear.
The screens were flat and solid, but once the demo was up and running they looked more like windows. Through the left-hand screen, Welch could see colleagues in Philadelphia as if they were sitting across the desk from him.