Tuesday, September 1, 2009

Lip-Reading Computers Able to Identify Different Languages




Lip-Reading Computers Able to Identify Different Languages

One of the latest inventions created by scientists from theUniversity of East Anglia (UEA) are lip-reading computers that are able to identify different languages.
Scientists managed to come up with lip-reading computers some time earlier but now they created the first computer that can really distinguish different languages. This latest invention could prove to be very useful for people with hearing problems, as well as for law enforcement agencies, and in noisy environments.
The revolutionary research is currently led by Stephen Cox and Jake Newman of UEA's School of Computing Sciences. They will present their latest invention at a major conference that will take place in Taiwan on April 22.
It is worth mentioning that the technology was built up by statistical modeling of the lip movements developed by a team of 23 bilingual and trilingual speakers. The system could distinguish any language with extremely high accuracy. It could identify English, French, German, Arabic, Mandarin, Cantonese, Italian, Polish and Russian, reports the UEA website.
"This is the first scientific confirmation that when people speak different languages, they use different mouth shapes in different sequences," outlined Prof Cox.
"For example, we found frequent 'lip-rounding' among French speakers and more prominent tongue movements among Arabic speakers," he added.
The study was funded by the EPSRC and is a part of a larger project of the University of East Anglia that focuses on automatic lip-reading. Soon scientists will start working on the system closer to an individual's physiology and their way of speaking.


Lip-reading computer can distinguish languages

Researchers at the University of East Anglia's school of computing developed the technology by statistically modeling the lip motions of 23 bilingual and trilingual speakers. The resulting system is able to identify the language spoken by an individual with "very high accuracy," according to the university. Identifiable languages included English, French, German, Arabic, Mandarin, Cantonese, Italian, Polish, and Russian.
What gives you away? The movement of your articulators--when you wag your tongue, jaw, and lips, you are generating the measurable characteristics of visual speech, the recognition of which is known as lip reading. Computer vision has already been used in lip reading, or "feature extraction," but this is the first time computers have been "taught" to recognize different languages.
"This is an exciting advance in automatic lip-reading technology and the first scientific confirmation of something we already intuitively suspected--that when people speak different languages, they use different mouth shapes in different sequences," said Professor Stephen Cox, who led the research along with Jake Newman. "For example, we found frequent 'lip rounding' among French speakers, and more prominent tongue movements among Arabic speakers."
The discovery could have practical uses for the deaf, law enforcement, and military units serving overseas, the researchers predict. With a little fine tuning it may also help you figure out what language your teenager speaks.

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