本文重点讲了在摄像头视野内的多辆车的监控和跟踪。基于特征检测的层次结构和融合，我们在本文中提出一个新的车型检测框架。-This article focuses on about the monitoring and tracking of vehicles in the camera field of view. Based on the hierarchy of the feature detection and integration in this paper, we propose a