基于双眼模型的三维视线估计方法

满毅; 赵歆波; 张珂

doi:10.13433/j.cnki.1003-8728.2015.0419

基于双眼模型的三维视线估计方法

doi: 10.13433/j.cnki.1003-8728.2015.0419

1.
西北工业大学计算机学院, 西安 710072

基金项目:

国家自然科学基金项目（61201319）、西北工业大学基础研究基金项目（JC20120205）及西北工业大学研究生创业种子基金项目（Z2011132）资助。

详细信息

作者简介:
满毅（1986-），硕士研究生，研究方向为数字图像处理，视线跟踪，manyi_nwpu@126.com

通讯作者:
赵歆波，教授，博士生导师，xbozhao@nwpu.edu.cn

计量
- 文章访问数: 148
- HTML全文浏览量: 37
- PDF下载量: 7
- 被引次数: 0
出版历程
- 收稿日期: 2013-02-14
- 刊出日期: 2015-04-05

3D Gaze Estimation Method Based on Binocular Model

1.
School of Computer Science and Engineering, Northwestern Polytechnical University, Xi'an 710072

摘要

摘要: 提出一种基于双眼模型的三维视线估计方法，以期克服二维视线跟踪方法固有的两个缺点，即对于使用者头部运动限制以及个体参数标定过程繁琐。该方法首先利用两个安装有红外灯组的摄像机组成立体视觉系统，实现人脸双眼图像的采集，之后，基于眼睛角膜球状假设，建立了一个适用于三维视线估计的三维眼模型，在此基础上，推导出人眼三维光轴的估计方法。用左右眼光轴与屏幕交点连线的中点估计方法，计算出注视点。该方法可在使用者头部运动的情况下，完成视线估计，且只需进行一次系统校准即可使用，无需其它标定过程，视线估计精度较高。
- 三维视线估计 /
- 三维眼模型 /
- 无标定
Abstract: This paper presents the 3D gaze estimation method based on binocular model. The method can overcome the two inherent problems of the 2D gaze estimation method, namely restriction on head movement and complex procedures for calibrating individual parameters. Firstly, we use two cameras on which groups of infrared lights are installed around the center of the lens to establish a stereo vision system. Then using this stereo vision system, the cameras capture eye images. Secondly, based on the non-spherical model of a cornea, we set up the 3D eye model which is adaptive to estimate 3D gaze. Thirdly the binocular optical axis calculation method is deduced. Finally, the midpoint between two intersection points of the left and right eye optical axis and the computer screen is calculated. With these, the fixation point is determined. The 3D gaze estimation method can estimate the eye gaze under natural head movement. Moreover, except only once, calibration by a user is not required (no calibration). The 3D gaze estimation method has high accuracy.
- binocular vision /
- calculations /
- calibration

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参考文献(14)

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