The ability to quickly and reliably transmit 3-D images over the Internet could make everything from shopping for real estate to playing video games a lot more "real." Imagine clothing companies transmitting 3-D body scans of their customers to a factory where tailored goods are made and shipped directly to the customer. Real estate firms could offer sophisticated virtual tours of homes on the Web, where a potential buyer could "walk" into a house, move furniture around and even tear down walls.

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