Learning Optimal Seeds for Ranking Saliency
A variety of methods have been developed for visual saliency analysis, and it is a challenge to detect the most important scene from the input image. In this paper, to improve the shortage that the spatial connectivity of every node in model only via the k-regular graph and the idealistic boundary prior assumption is used in graph-based manifold ranking, we present a new optimal seed method to get saliency map. First, we evaluate the salience value of each region by global contrast-based spatial and color feature. Second, the salience values of the first stage are used to optimize the background and foreground queries (seeds); meanwhile, we tackle boundary cues from hierarchical graph to optimize background seeds. Then, we derive each stage saliency measure by the classical manifold ranking after obtaining optimal seeds. Finally, the final saliency map is obtained by combining the saliency results of two stages. Our algorithm is tested on the five public datasets and compared with nine state-of-the-art methods; the quantitative evaluation indicates that our method is effective and efficient. Our method can handle complex images with different details and can produce more accurate saliency maps than other state-of-the-art approaches.
KeywordsSaliency detection Global region contrast Hierarchical graph Optimal seeds Manifold ranking
This work was supported by the grant of the National Natural Science Foundation of China (61671018, 61672204), Major Science and Technology Project of Anhui Province (17030901026), Key Constructive Discipline Project of Hefei University (2016xk05), MOE Youth Project of Humanities and Social Sciences (15YJC860034), Natural Science Foundation of Anhui Higher Education Institutions (KJ2016A604), Key Project of Hefei University (16ZR21ZDA), Youth Backbone Visiting Research Key Project at Abroad (gxfxZD2016219), National Statistical Science Research Project of China (2014LZ32), Horizontal Cooperative Research Project of Fuyang Normal University (XDHX2016021).
Compliance with Ethical Standards
Conflict of Interest
The authors declare that they have no conflict of interest.
This article does not contain any studies with human participants or animals performed by any of the authors.
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