Scientists create robot which registers human emotions
London, July 16: In their quest for creating a human-like robot, scientists have edged closer to their goal -- they have designed one that can display several human emotions - from fear, amazement, disgust to happiness.
Roboticists from the University of Pisa, Italy, drawing on 30 years of research, built one that uses 32 motors in 'her' face to simulate different expressions, to the point where a robot looks almost realistic enough to pass for a human.
It has been aptly named FACE.
The university team, led by doctoral student Nicole Lazzeri from Pisa, modelled the robot on one of the team's wives - and the team say 'it's very realistic', the Daily Mail reports.
The team used software called Hybrid Engine for Facial Expressions Synthesis (HEFES), which has been built up over the last 30 years to mimic human emotional responses.
It tells the motors how to respond in order to recreate a look, and the software can mix the various emotions on a sliding scale, for instance a smile tinged with sadness, or a laugh mixed with unease.
This last expression might be apt for those people who get trapped in the 'uncanny valley'. The principle of the valley is that people do not have an issue with humanoid robots when they do not look human - for instance, when they have metallic faces or expressionless faces.
And if a robot is undetectable as a robot, then the illusion is not broken, and people can interact with the robot.
But if the robot looks very close to human, yet is given away by tell-tale signs, it makes most people startled and very uneasy - which, if you plot on a graph of human reactions to robots, create the 'uncanny valley'.
The research team reportedly asked five autistic and 15 non-autistic children to identify a set of expressions performed by FACE, and then the same expressions performed by a psychologist.
Both groups could identify happiness, anger and sadness, but they struggled more with fear, disgust and surprise. IANS
Lastupdate on : Mon, 16 Jul 2012 21:30:00 Makkah time
Lastupdate on : Mon, 16 Jul 2012 18:30:00 GMT
Lastupdate on : Tue, 17 Jul 2012 00:00:00 IST
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