详情

原文传递 VIDEO IMAGE PROCESSING TO CREATE A SPEED SENSOR

题名：	VIDEO IMAGE PROCESSING TO CREATE A SPEED SENSOR
作者：	D.J. Dailey and L. Li
关键词：	image processing, geometric measurements, traffic management
摘要：	Image processing has been applied to traffic analysis in recent years, with different goals. In this report, a new approach is presented for extracting vehicular speed information, given a sequence of real-time traffic images. We extract moving edges and process the resulting edge information to obtain quantitative geometric measurements of vehicles. This differs from existing approaches because we use simple geometric relations obtained directly from the image instead of using reference objects to perform camera calibrations. Our method allows the recovery of the physical description of traffic scenes without explicit camera calibrations. In this report, extensive experiments using images from active TMS (Transportation Management System) freeway cameras are reported. The results presented in this report demonstrate the validity of our approach which requires neither direct camera control nor placement of a calibration object in the environment. We further argue that it is straightforward to extend our method to other related traffic applications.
报告类型：	科技报告