Semi-supervised estimation of perceived age from face images

Kazuya Ueki*, Masashi Sugiyama, Yasuyuki Ihara

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


We address the problem of perceived age estimation from face images and propose a new semi-supervised age prediction method that involves two novel aspects. The first novelty is an efficient active learning strategy for reducing the cost of labeling face samples. Given a large number of unlabeled face samples, we reveal the cluster structure of the data and propose to label cluster representative samples for covering as many clusters as possible. This simple sampling strategy allows us to boost the performance of a manifold-based semi-supervised learning method only with a relatively small number of labeled samples. The second contribution is to take the heterogeneous characteristics of human age perception into account. It is rare to misregard the age of a 5-year-old child as 15 years old, but the age of a 35-year-old person is often misregarded as 45 years old. Thus, magnitude of the error is different depending on subjects' age. We carried out a large-scale questionnaire survey for quantifying human age perception characteristics and propose to encode the quantified characteristics by weighted regression. Consequently, our proposed method is expressed in the form of weighted least-squares with a manifold regularize, which is scalable to massive datasets. Through real-world age estimation experiments, we demonstrate the usefulness of the proposed method.

Original languageEnglish
Title of host publicationVISAPP 2010 - Proceedings of the International Conference on Computer Vision Theory and Applications
Number of pages6
Publication statusPublished - 2010
Externally publishedYes
Event5th International Conference on Computer Vision Theory and Applications, VISAPP 2010 - Angers, France
Duration: 2010 May 172010 May 21


Other5th International Conference on Computer Vision Theory and Applications, VISAPP 2010


  • Active sample selection
  • Human age perception
  • Manifold regularization
  • Perceived age estimation
  • Semi-supervised learning
  • Weighted regression

ASJC Scopus subject areas

  • Computational Theory and Mathematics
  • Computer Science Applications
  • Computer Vision and Pattern Recognition


Dive into the research topics of 'Semi-supervised estimation of perceived age from face images'. Together they form a unique fingerprint.

Cite this