Silicon primary visual cortex designed with a mixed analog-digital architecture

We designed a mixed analog-digital neuromorphic vision system that can replicate the response of complex cells in the primary visual cortex (V1). Using the system, the binocular disparity energy maps were calculated in natural scenes in real time. Because of its compact hardware and low power dissipation, the neuromorphic vision system developed in the present study is suitable to robotic vision. More interestingly, it provides insights to explore the visual function of the neuronal network of the brain, visualizing neural images inferred from physiological experiments.