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Summary: Robots detect motion using a camera as their primary sensor, and they can use a technique called optical flow to detect movement. Find out how robots detect motion with information from an electrical and computer engineering professor in this free video on robots.
Dr. Kazuhiko Kawamura is a professor of electrical and computer engineering and management of technology in Nashville, Tenn., and he is also the director of the Center for Intelligent...read more
"Robot use vision or camera as a primary sensor, and you can store image as a collection of pictures just like on a TV screen. So, if robot see me just sitting like this, then all my images would be stored in one set of pictures. Now, if I move my arm, then position of pictures representing my arm and hand will move, and robot can detect this movement using a technique called optical flow, so, in this case, my face won't move, but my hands and arm move. Using optical flow, robot can detect this movement."
eHow Article: How Do Robots Detect Motion?
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