Hausdorff Iconic Matching With Application to Eye Tracking in Videoconferencing

Trucco, Emanuele; Razeto, Marco

doi:10.1142/9789812704337_0076

Cited by 1 publication

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“…To this purpose, we warp the incoming video by view synthesis, i.e., we synthesize the correct-viewpoint images [8,18]. This requires two components: real-time viewpoint tracking [19] and dense, accurate stereo disparity maps [6,8]. The latter are hard to achieve given the frequent occlusions created by arm movements, and the wide-baseline stereo geometry typical of immersive VC systems.…”

Section: Introductionmentioning

confidence: 99%

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Robust Correspondenceless 3-D Iris Location for Immersive Environments

Trucco

Anderson

Razeto

et al. 2005

Image Analysis and Processing – ICIAP 2005

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Abstract. 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.

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Section: Introductionmentioning

confidence: 99%

“…Within immersive videoconferencing, studies have been reported, among others, on eye contact using stereo [3], eye tracking within a 6-camera setup [1] and Hausdorff tracking [19].…”

Section: Introductionmentioning

confidence: 99%