A Co-Saliency Model of Image Pairs

  • Authors:
  • Hongliang Li;King Ngi Ngan

  • Affiliations:
  • School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu, China;Department of Electronic Engineering, The Chinese University of Hong Kong,

  • Venue:
  • IEEE Transactions on Image Processing
  • Year:
  • 2011

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Abstract

In this paper, we introduce a method to detect co-saliency from an image pair that may have some objects in common. The co-saliency is modeled as a linear combination of the single-image saliency map (SISM) and the multi-image saliency map (MISM). The first term is designed to describe the local attention, which is computed by using three saliency detection techniques available in literature. To compute the MISM, a co-multilayer graph is constructed by dividing the image pair into a spatial pyramid representation. Each node in the graph is described by two types of visual descriptors, which are extracted from a representation of some aspects of local appearance, e.g., color and texture properties. In order to evaluate the similarity between two nodes, we employ a normalized single-pair SimRank algorithm to compute the similarity score. Experimental evaluation on a number of image pairs demonstrates the good performance of the proposed method on the co-saliency detection task.