Improving cross-ratio-based eye tracking techniques by leveraging the binocular fixation constraint
Improving cross-ratio-based eye tracking techniques by leveraging the binocular fixation constraint
复制标题
利用双眼注视约束改进基于交叉比的眼动追踪技术
DOI：
10.1145/2578153.2578202
复制
发表时间：
2014
期刊：
影响因子：
--
通讯作者：
Q. Cai
中科院分区：
文献类型：
--
作者：
Zhengyou Zhang;Q. Cai
交比方法由于其在建立跟踪系统方面的简单性，最近在视线跟踪中引起了越来越多的关注。然而，它的准确性低于基于模型的方法，因此人们付出了大量努力来提高其准确性。双目固定是人类具有良好的深度知觉必不可少的，本文提出了一种利用这一约束的技术。它以两种方式使用：第一，联合估计两个眼睛的单应矩阵，第二，估计眼睛凝视本身。实验结果与合成和真实的数据表明，所提出的方法产生显着更好的结果比使用一只眼睛，也比平均独立的结果从两只眼睛。
The cross-ratio approach has recently attracted increasing attention in eye-gaze tracking due to its simplicity in setting up a tracking system. Its accuracy, however, is lower than that of the model-based approach, and substantial efforts have been devoted to improving its accuracy. Binocular fixation is essential for humans to have good depth perception, and this paper presents a technique leveraging this constraint. It is used in two ways: First, in estimating jointly the homography matrices for both eyes, and second, in estimating the eye gaze itself. Experimental results with both synthetic and real data show that the proposed approach produces significantly better results than using a single eye and also better than averaging the independent results from the two eyes.