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International Journal of Computer Vision
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CVPR '12 Proceedings of the 2012 IEEE Conference on Computer Vision and Pattern Recognition (CVPR)
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This paper introduces a novel global feature-based image copy detection approach. Firstly, Space-based and Object-based saliency detection methods are combined to generate salient region represented by an ellipse. Then the covariance matrix of various image features extracted from the elliptically salient region is formed and log covariance matrix is applied on the covariance matrix for low computational complexity. 28 independent numbers from log covariance matrix are regarded as the region feature vector, the similarity of which can be measured by L2 norm. The experimental results show that our proposed approach achieves similar or better performance than GIST and log covariance matrix based SCOV for image copy detection.