Title
An experimental study on the universality of visual vocabularies
Abstract
Bag-of-visual-words has been shown to be a powerful image representation and attained success in many computer vision and pattern recognition applications. Usually for a given classification task, researchers choose to build a specific visual vocabulary, and the problem of building a universal visual vocabulary is rarely addressed. In this paper we conduct extensive classification experiments with three features on four image datasets and show that the visual vocabularies built from different datasets can be exchanged without apparent performance loss. Furthermore, we investigate the correlation between the visual vocabularies built from different datasets and find that they are nearly identical, which explains why they are universal across classification tasks. We believe that this work reveals what is behind the universality of visual vocabularies and narrows the gap between bag-of-visual-words and bag-of-words in text domain.
Year
DOI
Venue
2013
10.1016/j.jvcir.2013.08.002
J. Visual Communication and Image Representation
Keywords
Field
DocType
classification task,extensive classification experiment,computer vision,different datasets,specific visual vocabulary,powerful image representation,image datasets,experimental study,universal visual vocabulary,apparent performance loss,visual vocabulary,universal,bag of visual words,classification,bag of words
Bag-of-words model,Computer vision,Bag-of-words model in computer vision,Computer science,Image representation,Visual vocabularies,Artificial intelligence,Natural language processing,Universality (philosophy),Vocabulary
Journal
Volume
Issue
ISSN
24
7
1047-3203
Citations 
PageRank 
References 
1
0.35
22
Authors
5
Name
Order
Citations
PageRank
Jian Hou112617.11
Wei-Xue Liu2263.81
Xu E343.89
Qi Xia4324.30
Nai-Ming Qi5385.09