A Cognitive Vision Model with STDP Adaptation

Early cognitive vision is one of the most important perceptive functions in the mammalian cerebral cortex. During information processing in the visual cortex, many bioelectrical signals are exchanged between cortical neurons, across their synaptic interconnections. When modelling visual cortex processing a dynamic scene can be modelled as an optical flow field, which can, in turn, be mapped on to a neuronal network. A possible, simple network structure has neurons placed along axes arranged radially from the optical flow field centre with only nearest-neighbour, on-axis connections. The characteristics of a dynamic scene can thus be reconstructed by local computation in neurons based upon the optical flow field.