Fig. 4: Virtual handwriting recognition. | Nature Communications

Fig. 4: Virtual handwriting recognition.

From: An intelligent hybrid-fabric wristband system enabled by thermal encapsulation for ergonomic human-machine interaction

Fig. 4

a Photograph of handwriting letters, showing the letter ‘U’. b Signal diagram of handwriting ‘U’, ‘N’, and ‘W’. The black is marked with the actual stroke, and the yellow is marked with the virtual stroke. Scale bar, 15 pF. c Signal diagram output from 26 handwriting letters. Scale bar, 25 pF. d, e Diagram(d) and diagram(e) are the signal when writing the words ‘HELLO’ and ‘WORLD’ at two speeds, respectively. Scale bar, 20 pF. f The correlation coefficient of handwriting 26 letters. g Correlation coefficient distribution curve of 26 handwriting words. h The recognition accuracy of each handwriting letter. Data are presented as mean values +/- SD, sample size (n) is six.

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