A computational coding model for saliency detection in primary visual cortex

This study researches the coding model adaptive for information processing of the bottom-up attention mechanism. We constructed a coding model satisfying the neurobiological constraints of the primary visual cortex. By quantitatively changing the coding constraints, we carried out experiments on images used in cognitive psychology and natural image sets to compare the effects on the saliency detection performance. The experimental results statistically demonstrated that the encoding of invariant features and representation of overcomplete bases is advantageous to the bottom-up attention mechanism.