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CVPR
2003
IEEE
14 years 11 months ago
Methods and Geometry for Plane-Based Self-Calibration
Abstract. We consider the problem of camera selfcalibration, from images of a planar object with unknown Euclidean structure. The general case of possibly varying focal length is a...
Pierre Gurdjos, Peter Sturm
ICPR
2008
IEEE
14 years 4 months ago
3D gaze estimation with a single camera without IR illumination
This paper proposes a 3D eye gaze estimation and tracking algorithm based on facial feature tracking using a single camera. Instead of using the infrared(IR) lights and the cornea...
Jixu Chen, Qiang Ji
CLEAR
2007
Springer
208views Biometrics» more  CLEAR 2007»
14 years 4 months ago
Head Orientation Estimation Using Particle Filtering in Multiview Scenarios
Abstract. This paper presents a novel approach to the problem of determining head pose estimation and face 3D orientation of several people in low resolution sequences from multipl...
Cristian Canton-Ferrer, Josep R. Casas, Montse Par...
ICPR
2008
IEEE
14 years 11 months ago
Robust auto-calibration of a PTZ camera with non-overlapping FOV
We consider the problem of auto-calibration of cameras, which are fixed in location but are free to rotate while changing their internal parameters by zooming. Our method is based...
Hassan Foroosh, Nazim Ashraf
GW
2009
Springer
178views Biometrics» more  GW 2009»
13 years 7 months ago
Deictic Gestures with a Time-of-Flight Camera
We present a robust detector for deictic gestures based on a time-of-flight (TOF) camera, a combined range and intensity image sensor. Pointing direction is used to determine wheth...
Martin Haker, Martin Böhme, Thomas Martinetz,...