Online calibration method of vehicle-mounted camera and vehicle-mounted information entertainment system

Abstract

The invention provides an online calibration method of a vehicle-mounted camera and a vehicle-mounted information entertainment system. According to the method, external parameter calibration of a vehicle-mounted camera is carried out by using a regular and straight lane line, a lane line image is collected by the vehicle-mounted camera, and lane line detection is carried out based on the collected image to obtain a world coordinate linear equation of the lane line; and the external parameter current value of the vehicle-mounted camera is optimized by taking the external parameter current value of the vehicle-mounted camera as an initial value and taking the straightness of the world coordinate linear equation of the lane line as an optimization target to achieve external parameter calibration of the vehicle-mounted camera. According to the scheme, on the premise that the parameter calibration accuracy is guaranteed, the operation time is short, manual participation is not needed, and the automation degree is high; and meanwhile, the scheme can be carried out only by utilizing a straight and regular lane line without depending on a fixed calibration template, so that the environmental adaptability of calibration can be greatly improved.

Description

technical field [0001] The invention relates to the technical field of automatic driving, in particular to an online calibration method of a vehicle-mounted camera and a vehicle-mounted infotainment system. Background technique [0002] With the development of automobile technology, vehicle-mounted surround view systems (Around View Monitor, AVM) and automatic parking systems are more and more widely used. During the use of AVM, due to the influence of external disturbance, body deformation, after-sales replacement, etc., the external parameters of the car camera will change accordingly, resulting in poor stitching effect of the surround view system, which will affect the user's use. [0003] In view of the above situation, the solution generally adopted in the prior art is to return the vehicle to the 4S shop for after-sales calibration. However, the after-sales calibration of 4s stores has the following problems: First, because the calibration effect is heavily dependent ...

AI Technical Summary

Problems solved by technology

However, the after-sales calibration of 4s stores has the following problems: First, because the calibration effect is heavily dependent on the precise positioning of the vehicle and the calibration template (Pattern), 4s stores do not have the calibration function of automatic vehicle calibration and positioning on the automobile production line. Therefore, the calibration template of the 4S store has low positioning accuracy or high complexity of the positioning process

Second, the after-sales calibration of 4s stores requires manual participation, and the degree of automation is low

Third, in the whole after-sales calibration process, users need to wait for a long time, which is not convenient enough

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