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This paper presents an approach to recognize 6 DOF rigid body motion trajectories (3D translation + rotation), such as the 6 DOF motion trajectory of an object manipulated by a human. As a first step in the recognition process, 3D measured position trajectories of arbitrary and uncalibrated points attached to the rigid body are transformed to an invariant, coordinate-free representation of the rigid...
We present an at-home assessment system for upper extremity rehabilitation with simple motion capture that is functional and affordable. This system uses lighted targets to initiate a reach to grasp (or touch, if the patient is unable to grasp) to three touch- and force-sensitive cones. During the reach, end-point reach trajectory is captured using a low-cost, custom-built infrared motion capture...
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