一种优化的二维视线映射模型  

An Improved Two-Dimensional Gaze Mapping Model

作　　者：迟健男[1] 张闯[1] 杨莉[1] 

机构地区：[1]北京科技大学信息工程学院,北京100083

出　　处：《北京理工大学学报》2011年第1期74-77,82,共5页Transactions of Beijing Institute of Technology

基　　金：国家自然科学基金资助项目(60574090);国家"八六三"计划项目(2007AA01Z160)

摘　　要：提出一种基于主动红外光源的优化二维视线映射模型.在头部静止情况下检测相关的视线特征参数,并进行瞳距补偿.利用非线性多项式建立从平面视线参数到视线落点的映射模型.最后采用支持向量机对不同头部位置造成的视线偏差进行补偿,使非线性映射函数扩展到任何头部位置,从而在头部运动情况下进行精确的视线估计.实验结果显示了文中方法的有效性.This paper presents an improved two-dimensional gaze mapping model based on active infrared light source. The concerned parameters of gaze were detected under the status of static head and the interpupillary distance was compensated. Then a model was built to map the gaze parameters to the gaze point using nonlinear polynomial. At last the technique of support vector regression （SVR） was used to compensate the deviation of sight line caused by different head position, so that non-linear mapping function can be extended to any head position. The results of the experiments verify that the improved model is valid and feasible.

关 键 词：视线追踪 平面视线参数 瞳距补偿 非线性多项式 支持向量回归 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]