Image annotation using high order statistics in non-Euclidean spaces

  • Authors:
  • Songhao Zhu;Juanjuan Hu;Baoyun Wang;Shuhan Shen

  • Affiliations:
  • School of Automation, Nanjing University of Posts and Telecommunications, Nanjing 210046, China;School of Automation, Nanjing University of Posts and Telecommunications, Nanjing 210046, China;School of Automation, Nanjing University of Posts and Telecommunications, Nanjing 210046, China;Institute of Automation, Chinese Academy of Sciences, Beijing 110093, China

  • Venue:
  • Journal of Visual Communication and Image Representation
  • Year:
  • 2013

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Abstract

Automatic image annotation is a promising way to achieve more effective image retrieval and image analysis by using keywords associated to the image content. Due to the semantic gap between low-level visual features and high-level semantic concepts of an image, however, the performances of many existing algorithms are not so satisfactory. In this paper, a novel image classification scheme, named high order statistics based maximum a posterior (HOS-MAP), is proposed to deal with the issue of image annotation. To bridge the gap between human judgment and machine intelligence, the proposed scheme first constructs a dissimilarity representation for each image in a non-Euclidean space; then, the information of dissimilarity diffusion distribution for each image is achieved with respect to the high-order statistics of a triplet of nearest neighbor images; finally, a maximum a posteriori algorithm with the information of Gaussian Mixture Model and dissimilarity diffusion distribution is adopted to estimate the relevance between each annotation and an input un-annotated image. Experimental results on a general-purpose image database demonstrate the effectiveness and efficiency of the proposed automatic image annotation scheme.