Authors:
Lars Lehmann
;
Roman Seidel
and
Gangolf Hirtz
Affiliation:
Digital Signal Processing and Circuit Technology, Chemnitz University, Reichenhainer Str. 70, Chemnitz, Germany
Keyword(s):
Segment Reference, Visualisation, Feedback Control, Assisted Motion Control, Motion Error Detection, 3D Realtime Animation.
Abstract:
In a medical therapy, the exact execution of the training exercises developed by the therapist is a crucial task for the success of the therapy. Currently, a therapist has to treat up to 15 patients at the same time on an outpatient basis. To compensate this deficit, an automated assistance system needs to be created. Previous approaches have focused on a parameterised segment angle-based assessment for training exercise feedback. This work focuses on a reference-based approach. This reference is created by the therapist and thus corresponds to the ideal movement model and can be individually adapted to the patient. It is necessary to compare this reference with the patients’ real movement in real time, to detect deviations and to output them as errors. For this purpose, the reference can be adapted to the body size of the patient and the patients’ current position and orientation can be taken into account, or it can be described by reference segments, i.e. an angle-based comparison
of the reference. Our work highlights the the segment and reference-based assessment approach and compares them to each other.
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