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August 5, 2016

Camera attached to robot hand enhances manipulation

Researchers at Carnegie Mellon University have shown that a camera attached to a robot's hand can rapidly create a 3D model of its environment and also locate the hand within that 3-D world. This enhances the robot's ability to perform tasks such as feeding people.

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In order for a robot arm to reach into a tight space or pick up a delicate object the robot needs to know precisely where its hand is. Researchers at Carnegie Mellon University’s Robotics Institute have shown that a camera attached to the robot’s hand can rapidly create a 3D model of its environment and also locate the hand within that 3D world.

Doing so with imprecise cameras and wobbly arms in real-time is tough, but the CMU team found they could improve the accuracy of the map by incorporating the arm itself as a sensor, using the angle of its joints to better determine the pose of the camera. This would be important for a number of applications, including inspection tasks, said Matthew Klingensmith, a Ph.D. student in robotics who worked on the study.

This research was supported in part by a grant from the National Science Foundation (grant IIS 14-26703).

To learn more, see the CMU news story Robot’s in-hand eye maps surroundings, determines hand’s location. (Date image taken: 2016; date originally posted to NSF Multimedia Gallery: Aug. 5, 2016)

Credit: Carnegie Mellon University

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