A Fast Method for Measuring Kinematic Parameters of Experimental Vehicle Based on Machine Vision

摘要

The vehicle kinematic parameter is important evaluation index of vehicle performance. But the measurement technique for vehicle kinematics parameters is still immature. Practical and efficient measuring system is nowin badly demand. With the development of machine vision technique, more and more measurement problems can be solved better by combining the measuring task with optical system. And on this basis the accuracy and efficiency of kinematicparameter measurement can be improved. A measuringplan is presented in this paper. In order to simplify the measuring algorithm, a simple and practical marker is as the substitute of vehicle. The complex measurement system is simplified and transformed to detection and trajectory tracking of the marker. In order to reduce the amount of computation and improve the speed of detection, a motion prediction local detection theory is presented to replace the traditional background subtraction detection method. Several experiments through MATLAB are conducted to verify the feasibility and accuracy of this measuring method.