Journal of shanghai Jiaotong University (Science) ›› 2015, Vol. 20 ›› Issue (1): 14-20.doi: 10.1007/s12204-015-1581-3

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Exploiting Local and Global Characteristics for Contrast Based Visual Saliency Detection

Exploiting Local and Global Characteristics for Contrast Based Visual Saliency Detection

XU Xin1,2* (徐 新), WANG Ying-lin3 (王英林), ZHANG Xiao-long1,2 (张晓龙)   

  1. (1. School of Computer Science and Technology, Wuhan University of Science and Technology, Wuhan 430081, China; 2. Hubei Province Key Laboratory of Intelligent Information Processing and Real-time Industrial System, Wuhan University of Science and Technology, Wuhan 430081, China; 3. School of Information Management and Engineering, Shanghai University of Finance and Economics, Shanghai 200433, China)
  2. (1. School of Computer Science and Technology, Wuhan University of Science and Technology, Wuhan 430081, China; 2. Hubei Province Key Laboratory of Intelligent Information Processing and Real-time Industrial System, Wuhan University of Science and Technology, Wuhan 430081, China; 3. School of Information Management and Engineering, Shanghai University of Finance and Economics, Shanghai 200433, China)
  • Online:2015-02-28 Published:2015-03-10
  • Contact: XU Xin(徐 新) E-mail:xuxin0336@gmail.com

Abstract:

Visual saliency is an important cue in human visual system to identify salient region in the image; it can be useful in many applications including image retrieval, object recognition, image segmentation, etc. Image contrast has been used as an effective feature to detect visual salient region. However, the conventional contrast measures either in spectral domain or in spatial domain fail to give sufficient consideration towards the local and global characteristics of the image. This paper presents a visual saliency detection algorithm based on a novel contrast measurement. This measurement extracts the spectral information of image block using the 2D discrete Fourier transform (DFT), and combines with the total variation (TV) of image block in spatial domain. The proposed algorithm is used to perform salient region detection in the image, and compared with state-of-the-art algorithms. The experimental results from the MSRA dataset validate the effectiveness of the proposed algorithm.

Key words:

visual saliency| contrast measure| multi-scale| local contrast| global contrast

摘要:

Visual saliency is an important cue in human visual system to identify salient region in the image; it can be useful in many applications including image retrieval, object recognition, image segmentation, etc. Image contrast has been used as an effective feature to detect visual salient region. However, the conventional contrast measures either in spectral domain or in spatial domain fail to give sufficient consideration towards the local and global characteristics of the image. This paper presents a visual saliency detection algorithm based on a novel contrast measurement. This measurement extracts the spectral information of image block using the 2D discrete Fourier transform (DFT), and combines with the total variation (TV) of image block in spatial domain. The proposed algorithm is used to perform salient region detection in the image, and compared with state-of-the-art algorithms. The experimental results from the MSRA dataset validate the effectiveness of the proposed algorithm.

关键词:

visual saliency| contrast measure| multi-scale| local contrast| global contrast

CLC Number: