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

A vehicle-mounted camera and calibration method technology, applied in the field of automatic driving, can solve the problems of users waiting for a long time, the complexity of the positioning process, and low positioning accuracy, so as to improve the environmental adaptability, ensure the effect of panoramic view stitching, and the degree of automation high effect

Active Publication Date: 2021-04-06
ECARX (HUBEI) TECHCO LTD
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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. Ther

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

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[0059] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present disclosure will be more thoroughly understood, and will fully convey the scope of the present disclosure to those skilled in the art.

[0060] For a vehicle equipped with a panoramic surround view system, the external parameters of the on-board camera will change during the use of the vehicle, resulting in a poorer display effect of the surround view system. However, there is no system in the prior art that does not rely on a fixed calibration template and has a high degree of automation. The camera extrinsic parameter calibration method.

[0061] In order ...

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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 ...

Claims

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Application Information

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IPC IPC(8): G06T7/80G06T5/00G06T7/13
CPCG06T7/80G06T5/006G06T7/13G06T5/002G06T2207/30256G06T2207/30208Y02T10/40
Inventor 李续贺邓世洋丁磊初诗杰庾京
Owner ECARX (HUBEI) TECHCO LTD
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