Fig. 6.

Recognition potential of FOAMs for the phase-dislocation-mediated CNN based on the single-ring sampling. (A) Cross-sectional distributions of pressure and phase for the P-FOAM of l = ±1.5. (B) Numerical and experimental circular pressure profiles acquired by the sing-ring sampling of 32, 64, and 128 points with r = 17 mm, with the error bars obtained by more than 2 groups of experiments. (C) Training accuracy with various sampling points and FOAM resolutions. The successful decoding of the P-FOAM for the training accuracy higher than 95% with the corresponding probabilities are shown in (D). Scale bar, 1 cm.