Learning realistic facial expressions from web images

Kaimin Yu, Zhiyong Wang, Li Zhuo, Jiajun Wang, Zheru Chi, Dagan Feng

Research output: Journal article publicationJournal articleAcademic researchpeer-review

29 Citations (Scopus)

Abstract

A large amount of labeled training data is required to develop effective and robust facial expression analysis methods. However, obtaining such data is typically a tedious and time-consuming task. With a rapid advance of the Internet and Web technologies, it has been feasible to collect a large number of images with label information at a low cost of human efforts. In this paper, we propose a search based framework to collect realistic facial expression images from the Web so as to further advance research on robust facial expression recognition. Due to the limitation of current commercial web search engines, a large fraction of returned images is not related to a given query keyword. We present a Support Vector Machine (SVM) based active learning approach for selecting relevant images from noisy image search results. The resulting dataset is more diverse with more sample images per expression compared to other well established facial expression datasets such as CK and JAFFE. In addition, a novel facial expression feature based on the state-of-the-art Weber Local Descriptor (WLD) and histogram contextualization is proposed to handle such a challenging dataset. Comprehensive experimental results demonstrate that our web based dataset is capable of resembling more closely to the real world conditions compared to the CK and JAFFE datasets, and our proposed feature is more effective than the existing widely used features.
Original languageEnglish
Pages (from-to)2144-2155
Number of pages12
JournalPattern Recognition
Volume46
Issue number8
DOIs
Publication statusPublished - 1 Aug 2013

Keywords

  • Active learning
  • Facial expression dataset
  • Facial expression recognition
  • Multiscale analysis
  • Web image search

ASJC Scopus subject areas

  • Software
  • Signal Processing
  • Computer Vision and Pattern Recognition
  • Artificial Intelligence

Cite this