Motion Estimation and Control of a Flexible Serpentine Robot by Motion Stereo and Distributed Sensors

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Estimation of motion and cable shape was studied using internal sensors of Active Scope Camera. By methods using only camera image and motion sensors, 6-DOF motion could be estimated in room environment, but rubble environments made the estimation difficult because of motion of the lights. By applying an unscented Kalman filter to a dynamic model of flexible cables by ANCF, the accuracy of estimation was improved for sparse sensors and/or large disturbance.