Fig. 5
Simulation of ANN for image recognition by the PRM photoelectric synapse. a The EPSC of PRM photoelectric synapse. b Schematic illustration of the simulated ANN with a three-layer architecture. c Numeral images 7 before and after pre-processing under various noise levels. d Random numeral images before and after pre-processing under various noise levels. e Confusion matrix for recognition of numeral images-7 after NVS 300 epochs training. f Confusion matrix for recognition of random digital images after NVS 300 epochs training. g The relationship between training times and recognition accuracy under different noises without NVS processing. h The relationship between training times and recognition accuracy under different noises with NVS processing. i Comparison of different noise recognition accuracy with or without NVS
