摘要
为定量描述驾驶员在行驶过程中的视觉搜索特性,提出"驾驶员视觉兴趣区域"的概念,包括单位时间视觉兴趣区面积和视觉兴趣区重心坐标两指标。在此基础上,通过试验获得驾驶员眼动指标,并利用Matlab计算出单位时间视觉兴趣区面积和重心坐标。视觉信息由公路线形、车辆行驶状态和交通流等组成,其影响因素分别为公路平面线形条件、行驶速度和前方车辆数。最后,通过室内外试验获得驾驶员眼动数据,定量分析并回归出驾驶员视觉兴趣区域与视觉信息影响因素的相关性模型。
In order to quantitative analysis the charactersitic of drivers＇ visual search,the concept of Viusal Interesting Region（VIR）,which includes area per unit time and barycentric coordinate,was proposed.On this basis,the eye movement indexes were obtained by tests,the area per unit time and the barycentric coordinate of VIR were cacluated using Matlab.Visual information can be classified as information of highway alignment,driving state and traffic flow,whose influencing factors are horizontal alignment,operating speed and frontage vehicle numbers.Finally,based on the eye movement data obtained by the tests,the model of the relation of VIR indexs with influencing factors was established by qualitative analysis and regression.
出处
《公路交通科技》
CAS
CSCD
北大核心
2010年第6期127-131,137,共6页
Journal of Highway and Transportation Research and Development
基金
江苏省自然科学基金资助项目(BK2008308)
关键词
交通工程
视觉兴趣区
MATLAB
面积
重心坐标
traffic eningeering
visual interesting region（VIR）
Matlab
area
barycentric coordinate
