by Brian Tomasik, Phyo Thiha, and Douglas Turnbull
SIGIR 2009

Abstract

Associating labels with online products can be a labor-intensive task. We study the extent to which a standard ‘bag of visual words’ image classifier can be used to tag products with useful information, such as whether a sneaker has laces or velcro straps. Using Scale Invariant Feature Transform (SIFT) image descriptors at random keypoints, a hierarchical visual vocabulary, and a variant of nearest-neighbor classification, we achieve accuracies between 66% and 98% on 2- and 3-class classification tasks using several dozen training examples. We also increase accuracy by combining information from multiple views of the same product.

bag-of-features1May09

Manuscripts

  • Two-page SIGIR version (pdf)
  • 8-page technical report (pdf)

Data

Feel free to contact Brian Tomasik to obtain a copy of our data set of ~3,500 images.