Design And Implementation Of Vehicle Monocular Composite Camera

The synchronization of machine vision and external sensor devices provides a feasible solution to realize the environment and self attitude perception of intelligent vehicle and unmanned vehicle by using machine vision algorithms and devices.In this paper,aiming at the problems of poor synchronization,low accuracy and lack of in-depth research on synchronization error of monocular machine vision ranging system,a machine vision ranging synchronization platform is established.The vehicle monocular composite camera is designed and implemented,and the accuracy and stability of the synchronization of the composite camera are verified by the monocular camera ranging algorithm based on machine vision.This thesis has carried out the following research work.(1)A synchronization platform is proposed to obtain the data of camera’s caster angle,camera’s instantaneous image data and shooting time data.It provides an effective method to solve the problem that the external data of the camera can not be synchronized with the image captured by the camera.When the tilt angle of the camera changes,the distance between the object and the camera can be measured in real time using the data obtained from the synchronization platform.This paper optimizes the code of sensor data extraction for the synchronization platform,improves the efficiency of external data collection,and improves the code compatibility and stability.(2)According to the monocular vision ranging method,the design idea of synchronization platform is proposed.The operability of the data obtained by the synchronization platform and the ranging accuracy of using this synchronization platform are verified in the actual scene,and the guarantee and synchronization recovery measures are proposed when the camera frame rate data of the synchronization platform is not synchronized with the angle sensor data.The experimental results show that the motion rate is 4.6 at the camera angle °/ s.When the frame rate of the camera is set to 20 frames / s,the ranging accuracy of the angle data based on this synchronization platform reaches more than 94.54%,which initially meets the experimental expectation,and realizes the synchronization function of the camera’s tilt angle data and the image data taken by the camera.