Fig. 3: Real-time refinement of bone lengths using signal distributions. | Nature Communications

Fig. 3: Real-time refinement of bone lengths using signal distributions.

From: Stretchable glove for accurate and robust hand pose reconstruction based on comprehensive motion data

Fig. 3

a Collection of hand poses conducted for the refinement of bone lengths estimation. All motions were restricted to these eight poses. IP interphalangeal, MCP metacarpophalangeal, CMC carpometacarpal, PIP proximal interphalangeal, flex flexion, abd abduction. b Histogram of the sensor signals of I-M abd. in Fig. 1c collected over the hand motion test; its Gaussian approximation defined by the true mean and variance of the histogram, and the estimated distribution defined by the mean and covariance estimated from the subject’s bone lengths. c Plot of average estimation errors of 10 bones with respect to time of continuous hand motions, shown for three participants (P1—P3). d Graphical representation of the estimated and true bone lengths of the three participants (P1—P3). Source data are provided in the Source Data file.

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