Vehicle-mounted camera attitude angle calibration method
A calibration method and vehicle-mounted camera technology, applied in the field of vehicle-mounted camera attitude angle calibration, can solve problems such as inaccurate vehicle-mounted camera attitude angle calibration
Pending Publication Date: 2021-05-11
中山联合汽车技术有限公司
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[0004] The main purpose of the present invention is to provide a vehicle-mounted camera attitude angle calibration method, aiming to solve the technical problem of inaccurate calibration of vehicle-mounted camera attitude angles in the prior art
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[0032] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0033] refer to figure 1 , figure 1 It is a schematic flowchart of the first embodiment of the method for calibrating the attitude angle of the vehicle-mounted camera of the present invention, and proposes the first embodiment of the method for calibrating the attitude angle of the vehicle-mounted camera of the present invention.
[0034] In this embodiment, the vehicle camera attitude angle calibration method includes the following steps:
[0035] Step S10: Obtain the image information collected by the vehicle-mounted forward-looking camera to be calibrated, and the vehicle driving information of the vehicle in front collected by the preset vehicle-mounted radar.
[0036] It should be noted that the execution subject of this embodiment may be a device with a vehicle-mounted camera attitude angle calibration functio...
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The invention discloses a vehicle-mounted camera attitude angle calibration method, and the method comprises the steps: obtaining the image information collected by a to-be-calibrated vehicle-mounted foresight camera, collecting the vehicle driving information of a front vehicle through a preset vehicle-mounted radar, and obtaining the license plate information of the front vehicle according to the image information; according to the license plate information and the vehicle driving information, determining whether the to-be-calibrated vehicle-mounted foresight camera meets a preset automatic calibration condition, and when the preset automatic calibration condition is met, performing attitude calibration on the to-be-calibrated vehicle-mounted foresight camera according to the license plate information, the camera internal parameters and the camera position parameters to obtain a camera attitude angle. Because the camera attitude is calibrated through the foresight camera and the radar, compared with the prior art that the attitude of a foresight camera is changed due to load, vibration, temperature and the like and thus the attitude parameter of the camera is inaccurate, automatic calibration of the attitude of the foresight camera is realized, and the accuracy of the attitude parameter of the camera is improved.
Description
technical field [0001] The invention relates to the technical field of automobiles, in particular to a method for calibrating the attitude angle of a vehicle-mounted camera. Background technique [0002] At present, with the development of the automobile industry, the acquisition of the position of the vehicle in front is a basic task of the advanced driver assistance system. The existing technology mainly determines the position of the vehicle in front through the vehicle's front-view system, but the attitude of the vehicle's front-view system will be affected by thermal expansion. Due to changes in cold shrinkage, mechanical vibration, and vehicle load changes, the attitude angle calibration of the on-board camera is inaccurate, resulting in a larger error in the measurement of the position of the front vehicle. [0003] The above content is only used to assist in understanding the technical solution of the present invention, and does not mean that the above content is adm...
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IPC IPC(8): G06T7/80G06T7/73G06K9/20
CPCG06T7/80G06T7/73G06T2207/30241G06T2207/30208G06T2207/30252G06V10/22G06V20/625
Inventor 杨永富王珂胡春文
Owner 中山联合汽车技术有限公司