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Diffuse visual attention for saliency detection

[+] Author Affiliations
Risheng Liu

Dalian University of Technology, School of Software Technology, No. 321, Tuqiang Street, Economy and Technology Development Area, Dalian 116620, China

Guangyu Zhong, Junjie Cao, Zhixun Su

Dalian University of Technology, School of Mathematical Sciences, No. 2 Linggong Road, Ganjingzi District, Dalian 116024, China

J. Electron. Imaging. 24(1), 013023 (Feb 05, 2015). doi:10.1117/1.JEI.24.1.013023
History: Received September 8, 2014; Accepted January 9, 2015
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Abstract.  This paper presents a physical perspective to understand visual saliency on the scene and develops an anisotropic heat diffusion based formulation, named visual attention diffusion (VAD), to detect salient regions in natural images. Our idea is based on the assumption that the visual attention can be diffused from a part of the most representative salient elements to other salient regions for a given image. In particular, we first design a corner-points-driven technique to simultaneously identify candidate foreground and background regions on the image. Then both the local object location and the nonlocal background structure can be estimated accordingly. Finally, we design a geometry-driven anisotropic Poisson system with Dirichlet boundary for saliency detection which uses the representative salient elements in the candidate foreground as heat sources and both local and nonlocal priors as guidance. After heat diffusion reaches a stable state, salient regions can be easily detected based on the temperatures (i.e., score value) of the image elements. Experiments show that the proposed system can produce more precise and reliable results compared to state-of-the-art saliency detectors.

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Topics

Diffusion ; Sensors

Citation

Risheng Liu ; Guangyu Zhong ; Junjie Cao and Zhixun Su
"Diffuse visual attention for saliency detection", J. Electron. Imaging. 24(1), 013023 (Feb 05, 2015). ; http://dx.doi.org/10.1117/1.JEI.24.1.013023


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