Computer scientist Mary has an idea for a new robot to help her work with children. How should it look? The robot should have arms to be able to lift things. And if it is going to communicate with people, it will also need a face. Scientists believe that giving a robot a face can make it seem more friendly. Humans would also like to pay more attention to robots with faces. But what kind?
For Mary, she wants to make sure that her new robot doesn't look too much like a human. She wants people to just treat it as a machine-person. If it looks more like a human than a machine, she thinks users might find it a bit creepy and feel afraid. Mary also believes that robot faces don't need to look a lot like ours. Her research shows that we can enjoy communicating with robots whether or not they look like humans, because our brains are able to look for faces. Just put two circles on top of a robot's body, and we will see a face.
Dave feels differently. He believes that although at first we might be afraid when seeing a robot with a lifelike face, we may soon get used to it. If robots are going to work closely with humans, they should look as much like us as possible. After all, faces are an important part of the way we communicate.
To make his robots look as much like real people as possible, Dave invented a special skin 皮肤) for their faces. With this skin, robots can show human-like expressions and appear to be angry, sad, happy or surprised. Dave's robots are also programmed to copy expressions. How? Just imagine his robot is looking at you. The cameras in its eyes send pictures of your face to its central computer!
