REAL-TIME CALIBRATION-FREE AUTONOMOUS EYE TRACKER

被引：7
|
作者：
Klefenz, Frank [1 ]
Husar, Peter [2 ]
Krenzer, Daniel [2 ]
Hess, Albrecht [2 ]
机构：
[1] Fraunhofer Inst Digital Media Technol IDMT, D-98693 Ilmenau, Germany
[2] Ilmenau Univ Technol, Dept Biosignal Proc, D-98693 Ilmenau, Germany
来源：
2010 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING | 2010年
关键词：
contactless remote eye tracker; five-dimensional Hough transform; fast image processing by FPGA; calibration-free computation of gaze direction;
D O I：
10.1109/ICASSP.2010.5495004
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
In several fields of medicine, transportation and security the instantaneous gaze direction of a person under supervision is of crucial importance. We developed a contactless stereoscopic video-based eye tracker which works without any individual calibration. In real time it delivers information about the gaze direction frame by frame. The introduced algorithms are designed for computing the gaze direction within image acquisition time that is only limited by the hardware setup. The cameras are integrated into front-end modules by means of FPGA (programmable logic) circuits for image processing. Computation of the gaze direction is based on the spatial position of the pupil which is detected by a five-dimensional Hough transform. The system works under ambient light conditions whereas additional infrared illumination can be used to become independent of ambient light.
引用
收藏
页码：762 / 765
页数：4
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