Fig. 1: Comparison of biological perception system and spike-based neuromorphic perception system.

a Schematic of biological perception system. Biologically, physical signals from the outside world are converted by receptors and neurons into electrical impulse signals, which are then transmitted to the cortex for further processing. b Schematic of spike-based artificial neuromorphic perception system. The calibratable artificial sensory neuron combined with sensors (pressure sensor, light sensor, temperature sensor, curvature sensor) convert different physical signals into spikes and then transform them into the spiking neural network (SNN) for complex tasks.