Optimal Edge Detectors for Ramp Edges
IEEE Transactions on Pattern Analysis and Machine Intelligence
The Geometry and Matching of Lines and Curves Over Multiple Views
International Journal of Computer Vision
Constructing a Multivalued Representation for View Synthesis
International Journal of Computer Vision
Introductory Techniques for 3-D Computer Vision
Introductory Techniques for 3-D Computer Vision
Eye Tracking Methodology: Theory and Practice
Eye Tracking Methodology: Theory and Practice
Facts, Conjectures, and Improvements for Simulated Annealing
Facts, Conjectures, and Improvements for Simulated Annealing
Towards Teleconferencing by View Synthesis and Large-Baseline Stereo
ICIAP '01 Proceedings of the 11th International Conference on Image Analysis and Processing
Fully Automatic Upper Facial Action Recognition
AMFG '03 Proceedings of the IEEE International Workshop on Analysis and Modeling of Faces and Gestures
Gaze Manipulation for One-to-one Teleconferencing
ICCV '03 Proceedings of the Ninth IEEE International Conference on Computer Vision - Volume 2
Computation and performance issues In coliseum: an immersive videoconferencing system
MULTIMEDIA '03 Proceedings of the eleventh ACM international conference on Multimedia
Personal Identification Based on Iris Texture Analysis
IEEE Transactions on Pattern Analysis and Machine Intelligence
Dense Wide-Baseline Disparities from Conventional Stereo for Immersive Videoconferencing
ICPR '04 Proceedings of the Pattern Recognition, 17th International Conference on (ICPR'04) Volume 4 - Volume 04
Robust iris location in close-up images of the eye
Pattern Analysis & Applications
A novel approach to 3-D gaze tracking using stereo cameras
IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics
IEEE Transactions on Circuits and Systems for Video Technology
Three-dimensional image processing in the future of immersive media
IEEE Transactions on Circuits and Systems for Video Technology
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We present a system locating the contour of an iris in space using robust active ellipse search and correspondenceless stereo. Robust iris location is the basis for gaze estimation and tracking, and, as such, an essential module for augmented and virtual reality environments. The system implements a robust active ellipse search based on a multi-scale contour detection model. The search is carried out by a simulated annealing algorithm, guaranteeing excellent performance in spite of heavy occlusions due to blinking, uncontrolled lighting, erratic target motion, and reflections of unpredictable scene elements. Stereo correspondence is avoided altogether by intersecting conjugate epipolar lines with the located ellipses. Experiments on synthetic and real images indicate very good performance of both location and reconstruction modules.