Feature combination strategies for saliency-based visual attention systems

摘要

Bottom-up or saliency-based visual attention allows pri- mates to detect nonspecific conspicuous targets in cluttered scenes. A classical metaphor, derived from electrophysiological and psycho- Physical studies, describes attention as a rapidly shiftable " spot- Light." We use a model that reproduces the attentional scan paths of This spotlight. Simple multi-scale " feature maps" detect local spatial Discontinuities in intensity, color, and orientation, and are combined Into a unique " master" or "saliency" map.