Orientation Detection and Attention Selection based Unit-linking PCNN

A new model of orientation detection and attention selection based on unit-linking PCNN (pulse coupled neural network), which is a kind of spiking neural network exhibiting synchronous pulse bursts and has biological support, is introduced. This new model, including two layers (the orientation detection layer and the attention selection layer), mimics orientation detection of the biological visual cortex, and realizes attention selection with TOP-DOWN mechanism by the periodical oscillation of the contour of the interesting object. In the attention selection layer, the chain code of the interesting object contour is used to express the prior knowledge