Taking a Closer Look at the Future of Video Conferencing
22 November 2010
Princess Leia, played by Carrie Fisher, in the original "Star Wars" film in 1977
This is the VOA Special English Technology Report.
High-quality systems used in video conferencing are called telepresence systems. The images are life-size yet not truly lifelike. They lack the depth that people would normally see if they were in the same room together. But this could change in the future with new kinds of three-dimensional telepresence systems.
Last week, we told you about a 3-D system at the University of Arizona. Researchers can send a moving image over the Internet and show it on a special screen in close to real time. People would not have to wear special glasses like they often need to watch 3-D movies.
The system uses a lot of cameras to take pictures of a person from different positions. Lasers reproduce the pictures combined into three-dimensional images, or holograms. The image appears more realistic with the more cameras that are used and the more pictures that are taken.
Howard Lichtman is president of the Human Productivity Lab. His company advises other companies on buying and using telepresence systems. Mr. Lichtman also publishes Telepresence Options, which reports on the industry.
He says this latest development would have done wonders for the "Star Wars" movie with the famous "Princess Leia" hologram scene.
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