Visual attention model based on statistical properties of neuron responses

Scientific Reports
Haibin Duan, Xiaohua Wang

Abstract

Visual attention is a mechanism of the visual system that can select relevant objects from a specific scene. Interactions among neurons in multiple cortical areas are considered to be involved in attentional allocation. However, the characteristics of the encoded features and neuron responses in those attention related cortices are indefinite. Therefore, further investigations carried out in this study aim at demonstrating that unusual regions arousing more attention generally cause particular neuron responses. We suppose that visual saliency is obtained on the basis of neuron responses to contexts in natural scenes. A bottom-up visual attention model is proposed based on the self-information of neuron responses to test and verify the hypothesis. Four different color spaces are adopted and a novel entropy-based combination scheme is designed to make full use of color information. Valuable regions are highlighted while redundant backgrounds are suppressed in the saliency maps obtained by the proposed model. Comparative results reveal that the proposed model outperforms several state-of-the-art models. This study provides insights into the neuron responses based saliency detection and may underlie the neural mechanism of early vi...Continue Reading

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Citations

Oct 3, 2020·Scientific Reports·Dario ZancaAlessandra Rufa

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Methods Mentioned

BETA
feature extraction

Software Mentioned

SAILnet
CBsal
CIELAB
AIM
I Net
Matlab
SVO

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