Improving classification accuracy of image categories using local descriptors with supplemental information

Kazuya Ueki, Youhei Shiraishi, Naohiro Tawara, Tetsunori Kobayashi

Research output: Contribution to journalArticle


In this paper we address the problem of image classification by embedding the spatial information into the local descriptor. In our method, we directly concatenate (x,y) coordinates of an image into the original feature vector. This simple idea can perform well in the object category classification even though the feature vector size is almost the same as the conventional approach. Results are reported for classification of the Caltech-101 dataset and our methods are found to produce consistently better results compared with traditional Bag-of-Features approaches in all experiments.

Original languageEnglish
Pages (from-to)1144-1149
Number of pages6
JournalSeimitsu Kogaku Kaishi/Journal of the Japan Society for Precision Engineering
Issue number12
Publication statusPublished - 2014 Dec 1
Externally publishedYes



  • Bag-of-features
  • Generic object recognition
  • Image category classification
  • Local features
  • Spacial information

ASJC Scopus subject areas

  • Mechanical Engineering

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