ViolaJones Cascades of Haarlike features

1
Multi-View Face Detection on Low-Quality Videos

• Viola-Jones (Cascades of Haar-like features)
• With rotated features
• In-Plane rotations for
• 30 60 90 120 150 180
• Skin color used for background objects VS rotated
  faces discrimination
• Performance results on 40 minutes of video
  footage

2
Eye Gaze Direction Detection

• Regression-based approach
• Location of the eye region in the image
• Given the known position of the object onthe
  screen, train the system to map theobject
  position with the appearanceof the eyes region
• No calibration required by the user
• Offline manual user space to image space
  correction
• Performances results
• Eye location
• Gaze direction

3
Publications

• Analysis of Head Mounted Wireless Camera Videos
  for Early Diagnosis of Autism Noris, B.,
  Benmachiche, K., Meynet, J., Thiran, J-P. and
  Billard, A. (2007).
• Accepted at the International Conference on
  Recognition Systems - CORES07
• Calibration-Free Eye Gaze Direction Detection
  with Gaussian Processes Noris, B., Benmachiche,
  K. and Billard, A. (2007).
• Submitted at the International Conference on
  Computer Vision Theory and Applications
  VISAPP08