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Essex Scientists Give Insight Into Future of Ultra-Hdtv Live Stream Technology


This year's graduation ceremonies at University of Essex.

Researchers at University of Essex streamed the schools' 2014 graduation ceremonies live, across the globe, using new ultra-high definition TV technology.

Credit: University of Essex

University of Essex scientists will showcase their pioneering ultra-high definition TV (UHDTV) research at the International Broadcasting Convention in Amsterdam.

The researchers already have used new technology to stream the university's graduation ceremonies live across the globe via the Internet earlier this year. The team managed to live stream the 4K UHDTV--four times the current HD resolution--by adapting off-the-shelf video-compression equipment. The researchers were able to compress the ultra-high definition image so it could be live streamed at 8 Mbps via ordinary broadband connections without loss of quality and in real time, avoiding the frustrations of waiting for the stream to buffer.

"This type of live streaming involves a huge amount of raw data, equivalent to about 63,000 phone calls being made all at once," says Essex professor Stuart Walker. "It was a major challenge to be able to compress this signal to a size which could be accessed by even the most basic broadband connection around the world."

Walker says recipients would have needed a special 4K TV; the team's next challenge is to make live 8K images affordable.

From University of Essex
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