Fig. 3: ML-enabled gesture/sign language recognition system enabled by the ATH-Ring. | Nature Communications

Fig. 3: ML-enabled gesture/sign language recognition system enabled by the ATH-Ring.

From: Augmented tactile-perception and haptic-feedback rings as human-machine interfaces aiming for immersive interactions

Fig. 3: ML-enabled gesture/sign language recognition system enabled by the ATH-Ring.

a Illustration of the 14 American sign language gestures for further recognition. b The (i) pulse-like signals (ii) and the corresponding PCA clustered results for 14 gestures. c The (i) voltage integration signals (ii) and the corresponding PCA clustered results for 14 gestures. The corresponding confusion map for (d) pulse-like signal dataset and e voltage integration signal dataset. f The (i) pulse-like signal spectrum and (ii) voltage integration signal spectrum for a continuous sign language sentence: 1-2-7-8.

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