Design and calibration for gaze tracking system

Author

Zhang, Qiong ; Wang, Zhiliang ; Chi, Jiannan ; Zhang, Pengyi ; Yang, Yi

Author_Institution

Inf. Eng. Inst., Univ. of Sci. & Technol. Beijing, Beijing, China

fYear

2010

fDate

16-18 April 2010

Firstpage

221

Lastpage

225

Abstract

This paper presents a system for eye gaze tracking. The system consists of two CCD cameras and two novel light sources for stereovision. We propose a method for system calibration of gaze tracking system, in which camera is not directly facing the screen and light sources. A planar mirror is used to make them visible to the camera. Using planar calibration patterns, we can uniquely identify the reflection of each screen and light sources pixel on the imaged planar mirror. Using stereo camera parameters, we can obtain three-dimensional locations of mirror and screen´s reflection. This allows us to compute three-dimensional locations of screen and light sources. This result shows a consistent improvement in accuracy, which we illustrate with experiments on real data.

Keywords

CCD image sensors; calibration; eye; mirrors; stereo image processing; tracking; CCD cameras; eye gaze tracking; gaze tracking system calibration; light sources; planar calibration patterns; planar mirror; screen reflection; stereo camera parameters; stereovision; Calibration; Cameras; Charge coupled devices; Charge-coupled image sensors; Light emitting diodes; Light sources; Microcomputers; Mirrors; Optical reflection; Tracking loops; Calibration; Camera; Eye; Gaze; Pupil; Stereovision; System Calibration; Tracking;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Management and Engineering (ICIME), 2010 The 2nd IEEE International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4244-5263-7

Electronic_ISBN

978-1-4244-5265-1

Type

conf

DOI

10.1109/ICIME.2010.5477463

Filename

5477463