fig6

Figure 6. (A) Schematic of the gesture communication system at cold condition; (B) Schematic of the simulated cold environment setup; (C) Electrical signals matching to different degrees of finger bending; (D) Different gesture categories and their corresponding signal curves for each finger; (E and F) Framework of the CNN-based gesture recognition workflow constructed from sensing signals; (G) Accuracy and loss values over 100 epochs; (H) Confusion matrix for the classification of eight different gestures. CNN: Convolutional neural network.