Graphics enhanced version of this site

Iain Matthews
Senior Systems Scientist

Associated center: VASC

Email address: iainm@cs.cmu.edu (Currently On Leave)

Mailing address:
Carnegie Mellon University
Robotics Institute
5000 Forbes Avenue
Pittsburgh, PA 15213

For more information, see my personal homepage.

Jump to: Research interests | Keywords | Labs & groups | Projects | Publications

Please visit my Enduro Africa fund raising website!

I am mainly interested in the problem of real-time non-rigid tracking. Typically this is being used in the task of tracking faces. I actively pursue adjuvant applications such as driver monitoring and audio-visual speech recognition and synthesis.

The project pages below describe both the technical details of our approach and some specific applications.

computer vision, human-computer interaction, and speech generation and recognition

• Face Group - Robust detection, recognition, and tracking of human faces with automated analysis of expressions
• Human Identification at a Distance - We are developing and evaluating human identification technologies as part of the Defense Advanced Research Projects Agency (DARPA) sponsored program in Human Identification at a Distance (HumanID).
• Virtualized Reality^TM - Construct views of real events from nearly any viewpoint

• AAM Fitting Algorithms - Many varieties of algorithms for fitting Cootes and Taylor's "Active Appearance Models" are developed.
• AAMs with Occlusion - We are developing algorithms to construct AAMs from occluded training images and to efficiently fit AAMs to faces containing occlusion.
• Face Recognition Across Pose - Recognizing people from different poses.
• 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.

• Multi-view AAM fitting and construction
  K. Ramnath, S.C. Koterba, J. Xiao, C. Hu, I. Matthews, S. Baker, J. Cohn, and T. Kanade
  International Journal of Computer Vision, 2007.

• Real-time expression cloning using active appearance models
  B. Theobald, I. Matthews, J. Cohn, and S. Boker
  Proceedings of the ACM International Conference on Multimodal Interfaces (ICMI'07), 2007, pp. 134 - 139. [Abstract]
  Download: pdf [1749 KB] copyrighted

• Face Refinement through a Gradient Descent Alignment Approach
  S. Lucey and I. Matthews
  HCSNet Workshop on the Use of Vision in HCI (VisHCI), November, 2006. [Abstract]
  Download: pdf [333 KB] copyrighted

• Evaluating Error Functions for Robust Active Appearance Models
  B. Theobald, I. Matthews, and S. Baker
  Proceedings of the International Conference on Automatic Face and Gesture Recognition, April, 2006, pp. 149 - 154. [Abstract]
  Download: pdf [229 KB] copyrighted

• On the Dimensionality of Deformable Face Models
  I. Matthews, J. Xiao, and S. Baker
  tech. report CMU-RI-TR-06-12, Robotics Institute, Carnegie Mellon University, March, 2006. [Abstract]
  Download: pdf [1489 KB] copyrighted

• AAM derived face representations for robust facial action recognition
  S. Lucey, I. Matthews, C. Hu, Z. Ambadar, F. De la Torre Frade, and J. Cohn
  Proceedings of the Seventh IEEE International Conference on Automatic Face and Gesture Recognition (FG'06), 2006, pp. 155 - 160.
  Download: pdf [828 KB] copyrighted

• Active Appearance Models with Occlusion
  R. Gross, I. Matthews, and S. Baker
  Image and Vision Computing, Vol. 24, No. 6, 2006, pp. 593-604. [Abstract]
  Download: pdf [3404 KB] copyrighted

• Generic vs. person specific active appearance models
  R. Gross, I. Matthews, and S. Baker
  Image and Vision Computing, Vol. 23, No. 11, November, 2005, pp. 1080-1093. [Abstract]
  Download: pdf [2086 KB] copyrighted

• Multi-View AAM Fitting and Camera Calibration
  S.C. Koterba, S. Baker, I. Matthews, C. Hu, J. Xiao, J. Cohn, and T. Kanade
  Proc. International Conference on Computer Vision, Vol. 1, October, 2005, pp. 511 - 518. [Abstract]
  Download: pdf [2053 KB] copyrighted

• Active Appearance Models Revisited
  I. Matthews and S. Baker
  International Journal of Computer Vision, Vol. 60, No. 2, November, 2004, pp. 135 - 164. [Abstract]
  Download: pdf [759 KB] copyrighted