On-line Calibration Method of Camera Parameters in Vehicle Surround View System Based on Vehicle Assembly Line

Abstract

A vehicle assembly line based vehicle around view system camera parameter on-line calibration method comprises performing calibration on vehicles, vehicle assembly lines and vehicle around view systems and performing correction on markers. The vehicle assembly line based vehicle around view system camera parameter on-line calibration method comprises three work stations comprising a preparation work station, a collection work station and an end work station; the front end of the collection work station is provided with a limit switch; the vehicles pass through the preparation work station, the collection work station and the end work station along with a production line and the calibration is achieved in the process. According to the vehicle assembly line based vehicle around view system camera parameter on-line calibration method, the integral parameter calibration process is performed on the production line, additional places are not required, the vehicle positions do not need to be manually adjusted, the vehicles do not need to drive to other separate places for calibration, and accordingly mass manpower, time and places are saved and the efficiency of the calibration is greatly improved.

Description

technical field [0001] The invention relates to the field of parameter calibration of a vehicle-mounted camera, in particular to an online calibration method for camera parameters of a vehicle-mounted surround view system based on a vehicle assembly line. Background technique [0002] The car surround view system is composed of multiple wide-angle cameras assembled on the car body, each camera covers a certain area, and the images are transformed to generate a top view through viewpoint transformation, and then spliced ​​to obtain a car surround view bird's-eye view. In order to make the images captured by the above-mentioned multiple wide-angle cameras assembled on the vehicle body undergo point-of-view transformation to generate a seamless splicing synthetic bird's-eye view without distortion, the internal parameters and external parameters of the above-mentioned wide-angle cameras assembled on the vehicle body must be are precisely calibrated. Whether the internal parame...

AI Technical Summary

Problems solved by technology

[0005] Purpose of the invention: In order to overcome the deficiencies of the prior art, the present invention provides an on-line calibration method for camera parameters of a vehicle-mounted surround view system based on a vehicle assembly line. Calibration is performed on the vehicle assembly line through fixed calibration markers, which solves the problem of low calibration efficiency in the prior art , the disadvantage of difficult operation

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