关键词: 角点检测, 特征匹配, 运动跟踪, 交通参数, 参数测量

Abstract:

This paper proposes a detection method of traffic parameters based on the characteristics of video comer information,in which a detection region is divided into an initial one and a tracing one.In the initiative detection region,the existence of moving vehicles is tested,and a suppositional line state detection is carried out to deter-mine whether the vehicle is moving in,thus speeding up the calculation.W hen a vehicle is moving in, its com ers are firstly located and its state parameters are initialized.In the tracing region,the objections are segmented and traced on the basis of their comer characteristics and according to the kinetic consistency hypothesis of the rigid body.At the end of the tracing,the inform ation,such as the traffic flow,the average velocity and the vehicle type,is computed.

Key words: comer detection, feature matching, motion tracing, traffic parameter, parameter measurement