Researchers at Tokyo University’s Oku Ishikawa Lab — home of the unbeatable rock, paper, scissors robot — are working on another application of high-speed motion tracking, only this one’s for real sports. A research team headed by Kohei Okumura has put together a motion-tracking camera system with a tiny one-millisecond latency, allowing the camera to stay locked on even fast-moving targets — say, ping pong balls in play (video below). While motion tracking isn’t new, an ordinary camera would be too heavy to move with millisecond-order precision, so the team decided to go with a fixed camera and two rotating mirrors — one to control pan (the horizontal axis), and the other for tilt (vertical); an array the group calls a… Continue reading…

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Super-fast motion tracking camera uses rotating mirrors to stay locked on target