Recognition by Enhanced Bag of Words Model via Topographic ICA

  • Min Jing
  • Hui Wang
  • Kathy Clawson
  • Sonya Coleman
  • Shuwei Chen
  • Jun Liu
  • Bryan Scotney
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8867)

Abstract

The Bag-of-Words (BoW) model has been increasingly applied in the field of computer vision, in which the local features are first mapped to a codebook produced by clustering method and then represented by histogram of the words. One of drawbacks in BoW model is that the orderless histogram ignores the valuable spatial relationships among the features. In this study, we propose a novel framework based on a topographic independent component analysis (TICA), which enables the geometrically nearby feature components to be grouped together thereby bridge the semantic gap in BoW model. In addition, the compact feature obtained from TICA helps to build an efficient codebook. Furthermore, we introduce a new closeness measurement based on Neighbourhood Counting Measure (NCM) to improve the k Nearest Neighbour classification. The preliminary results based on KTH and Trecvid data demonstrate the proposed TICA/NCM approach increases the recognition accuracy and improve the efficiency of BoW model.

Keywords

bag of words topographic ICA neighbourhood counting measurement action recognition 

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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  • Min Jing
    • 1
  • Hui Wang
    • 1
  • Kathy Clawson
    • 2
  • Sonya Coleman
    • 1
  • Shuwei Chen
    • 1
  • Jun Liu
    • 1
  • Bryan Scotney
    • 1
  1. 1.University of UlsterUK
  2. 2.Middlesbrough CollegeUK

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