“…Over the past two decades, computational modeling of this intelligent behavior has been an emerging research topic, which has benefited a wide range of scientific and engineering fields [1]- [3]. In its early stage, the source of inspirations for visual saliency modeling mainly comes from biological cognition rules, such as local/global contrast, singularity/sparsity, shape/location prior, etc [4]- [7]. These models are artificial rule-based and generally have good theoretical interpretability.…”