Learning implicit transfer for person re-identification

  • Authors:
  • Tamar Avraham;Ilya Gurvich;Michael Lindenbaum;Shaul Markovitch

  • Affiliations:
  • Computer Science Department, Technion - I.I.T., Haifa, Israel;Computer Science Department, Technion - I.I.T., Haifa, Israel;Computer Science Department, Technion - I.I.T., Haifa, Israel;Computer Science Department, Technion - I.I.T., Haifa, Israel

  • Venue:
  • ECCV'12 Proceedings of the 12th international conference on Computer Vision - Volume Part I
  • Year:
  • 2012

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Abstract

This paper proposes a novel approach for pedestrian re-identification. Previous re-identification methods use one of 3 approaches: invariant features; designing metrics that aim to bring instances of shared identities close to one another and instances of different identities far from one another; or learning a transformation from the appearance in one domain to the other. Our implicit approach models camera transfer by a binary relation R={(x,y)|x and y describe the same person seen from cameras A and B respectively}. This solution implies that the camera transfer function is a multi-valued mapping and not a single-valued transformation, and does not assume the existence of a metric with desirable properties. We present an algorithm that follows this approach and achieves new state-of-the-art performance.