Unsupervised selective transfer learning for object recognition

  • Authors:
  • Wei-Shi Zheng;Shaogang Gong;Tao Xiang

  • Affiliations:
  • School of Electronic Engineering and Computer Science, Queen Mary University of London, London, UK;School of Electronic Engineering and Computer Science, Queen Mary University of London, London, UK;School of Electronic Engineering and Computer Science, Queen Mary University of London, London, UK

  • Venue:
  • ACCV'10 Proceedings of the 10th Asian conference on Computer vision - Volume Part II
  • Year:
  • 2010

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Abstract

We propose a novel unsupervised transfer learning framework that utilises unlabelled auxiliary data to quantify and select the most relevant transferrable knowledge for recognising a target object class from the background given very limited training target samples. Unlike existing transfer learning techniques, our method does not assume that auxiliary data are labelled, nor the relationships between target and auxiliary classes are known a priori. Our unsupervised transfer learning is formulated by a novel kernel adaptation transfer (KAT) learning framework, which aims to (a) extract general knowledge about how more structured objects are visually distinctive from cluttered background regardless object class, and (b) more importantly, perform selective transfer of knowledge extracted from the auxiliary data to minimise negative knowledge transfer suffered by existing methods. The effectiveness and efficiency of the proposed approach is demonstrated by performing one-class object recognition (object vs. background) task using the Caltech256 dataset.