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Jenn-Jier James Lien
Visiting Research Scientist

No longer a member of RI.

For more information, see my personal homepage.

Jump to: Labs & Groups | Projects | Publications

• Affect Analysis Group - Automated analysis of facial expression from digitized image sequences
• Face Group - Robust detection, recognition, and tracking of human faces with automated analysis of expressions

• Cohn-Kanade AU-Coded Facial Expression Database - An AU-coded database of over 2000 video sequences of over 200 subjects displaying various facial expressions.
• Facial Expression Analysis - Automatic facial expression encoding, extraction and recognition, and expression intensity estimation for the applications of MPEG4 application: teleconferencing, human-computer interaction/interface.

• Detection, Tracking, and Classification of Action Units in Facial Expression
  J.J. Lien, T. Kanade, J. Cohn, and C. Li
  Journal of Robotics and Autonomous Systems, Vol. 31, No. 3, May, 2000, pp. 131 - 146.
  Download: pdf [1902 KB] copyrighted

• Detection, tracking, and classification of subtle changes in facial expression
  J.J. Lien, T. Kanade, J. Cohn, and C. Li
  Journal of Robotics and Autonomous Systems, Vol. 31, 2000, pp. 131 - 146. [Abstract]
  Download: pdf [548 KB] copyrighted

• Detection, Tracking, and Classification of Action Units in Facial Expression
  J.J. Lien, T. Kanade, J. Cohn, and C. Li
  Journal of Robotics and Autonomous Systems, July, 1999.
  Download: pdf [548 KB] copyrighted

• Automated face analysis by feature point tracking has high concurrent validity with manual FACS coding
  J. Cohn, A. Zlochower, J.J. Lien, and T. Kanade
  Psychophysiology, Vol. 36, 1999, pp. 35 - 43. [Abstract]
  Download: pdf [245 KB] copyrighted

• A Multi-Method Approach for Discriminating Between Similar Facial Expressions, Including Expression Intensity Estimation
  J.J. Lien, T. Kanade, J. Cohn, and C. Li
  Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition (CVPR '98), June, 1998. [Abstract]
  Download: pdf [607 KB] copyrighted

• Subtly Different Facial Expression Recognition and Expression Intensity Estimation
  J.J. Lien, T. Kanade, J. Cohn, and C. Li
  IEEE Conference on Computer Vison and Pattern Recogntion, June, 1998, pp. 853 - 859. [Abstract]
  Download: pdf [1888 KB], ps.gz [2220 KB] copyrighted

• Automated Facial Expression Recognition Based on FACS Action Units
  J.J. Lien, T. Kanade, J. Cohn, and C. Li
  Third IEEE International Conference on Automatic Face and Gesture Recognition, April, 1998, pp. 390-395. [Abstract]
  Download: pdf [998 KB], ps.gz [1154 KB] copyrighted

• Automatic Recognition of Facial Expressions Using Hidden Markov Models and Estimation of Expression Intensity
  J.J. Lien
  doctoral dissertation, tech. report CMU-RI-TR-98-31, Robotics Institute, Carnegie Mellon University, April, 1998. [Abstract]
  Download: pdf [6472 KB] copyrighted

• Feature-point tracking by optical flow discriminates subtle differences in facial expression
  J. Cohn, A. Zlochower, J.J. Lien, and T. Kanade
  Proceedings of the 3rd IEEE International Conference on Automatic Face and Gesture Recognition (FG '98), April, 1998, pp. 396 - 401. [Abstract]
  Download: pdf [757 KB] copyrighted

• Beyond Prototypic Expressions: Discriminating Subtle Changes in the Face
  J. Cohn, J.J. Lien, T. Kanade, W. Hua, and A. Zlochower
  Proc. of the 7th IEEE Robot and Human Communications Workshop, 1998. [Abstract]
  Download: pdf [726 KB] copyrighted