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iART: Learning from Demonstration for Assisted Robotic Therapy

In this video, we present an intelligent Assistant for Robotic Therapy (iART), that provides robotic assistance during 3D trajectory tracking tasks. We propose a novel Long Short Term Memory-based robot learning from demonstration (LfD) paradigm to mimic a therapist's assistance behavior. iART presents a trajectory agnostic LfD routine that can generalize learned behavior from a single trajectory to any 3D shape. Once the therapist's behavior has been learned, iART enables the patient to modify this behavior as per their preference. The system requires only a single demonstration of 2 minutes and exhibits a mean accuracy of 93.18% in predicting and hence mimicking a therapist's assistance behavior. The system delivers stable assistance in realtime and successfully mimics different types of assistance behaviors.


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