Implicit Calibration of a Remote Gaze Tracker
Abstract
We describe a system designed to monitor the gaze of a user working naturally at a computer workstation. The system consists of three cameras situated between the keyboard and the monitor. Free head movements are allowed within a three-dimensional volume approximately 40 centimeters in diameter. Two fixed, wide-field "face" cameras equipped with active-illumination systems enable rapid localization of the subject's pupils. A third steerable "eye" camera has a relatively narrow field of view, and acquires the images of the eyes which are used for gaze estimation. Unlike previous approaches which construct an explicit three-dimensional representation of the subject's head and eye, we derive mappings for steering control and gaze estimation using a procedure we call implicit calibration. Implicit calibration is performed by collecting a "training set" of parameters and associated measurements, and solving for a set of coefficients relating the measurements back to the parameters of interest. Preliminary data on three subjects indicate an median gaze estimation error of ap-proximately 0.8 degree.
Cite
Text
Brolly and Mulligan. "Implicit Calibration of a Remote Gaze Tracker." IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops, 2004. doi:10.1109/CVPR.2004.366Markdown
[Brolly and Mulligan. "Implicit Calibration of a Remote Gaze Tracker." IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops, 2004.](https://mlanthology.org/cvprw/2004/brolly2004cvprw-implicit/) doi:10.1109/CVPR.2004.366BibTeX
@inproceedings{brolly2004cvprw-implicit,
title = {{Implicit Calibration of a Remote Gaze Tracker}},
author = {Brolly, Xavier L. C. and Mulligan, Jeffrey B.},
booktitle = {IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops},
year = {2004},
pages = {134},
doi = {10.1109/CVPR.2004.366},
url = {https://mlanthology.org/cvprw/2004/brolly2004cvprw-implicit/}
}