Vehicle-mounted camera automatic calibration method and device, and readable storage medium

An automatic calibration and camera technology, applied in the field of computer vision, can solve the problem of low calibration accuracy

Active Publication Date: 2020-09-22
SHENZHEN ZHONGTIAN ANCHI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a vehicle-mounted camera automatic calibration method, aiming to solve the technical problem of low calibration accuracy of the existing vehicle-mounted camera calibration method

Method used

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  • Vehicle-mounted camera automatic calibration method and device, and readable storage medium
  • Vehicle-mounted camera automatic calibration method and device, and readable storage medium
  • Vehicle-mounted camera automatic calibration method and device, and readable storage medium

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Embodiment Construction

[0075] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0076] like figure 1 as shown, figure 1 It is a schematic structural diagram of the vehicle-mounted camera automatic calibration device in the hardware operating environment involved in the solution of the embodiment of the present invention.

[0077] The vehicle-mounted camera automatic calibration device in the embodiment of the present invention is a terminal device with a vehicle-mounted camera.

[0078] like figure 1 As shown, the vehicle-mounted camera automatic calibration device may include: a processor 1001 , such as a CPU, a communication bus 1002 , a user interface 1003 , a network interface 1004 , and a memory 1005 . Wherein, the communication bus 1002 is used to realize connection and communication between these components. The optional user interface 1003 may include a standard wired interface and a ...

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Abstract

The invention discloses a vehicle-mounted camera automatic calibration method and device, and a readable storage medium. According to the vehicle-mounted camera automatic calibration method, rigid targets in a plurality of road images acquired by the vehicle-mounted camera to be calibrated are identified, so that relatively large errors caused by taking changeable flexible targets such as a humanbody in the images as a calibration basis to a calibration result are avoided, and the stability and the precision level of a calibration process are improved; the method comprises the following steps: acquiring initial visual parameters of a plurality of road images so as to obtain a plurality of reference sample data; and determining the target visual parameter with the maximum possibility through the Gaussian distribution characteristics and the plurality of initial visual parameters to calibrate the vehicle-mounted camera, so that the calibration precision is improved. Besides, compared with the prior art, the method has the advantages that full-automatic calibration can be carried out without any external manual assistance, professional technical support is not needed, the calibrationdifficulty is greatly reduced, and the method has wide adaptability and advancement.

Description

technical field [0001] The invention relates to the technical field of computer vision, in particular to an automatic calibration method, device and readable storage medium for a vehicle-mounted camera. Background technique [0002] In the field of automotive autonomous driving and assisted driving, vision is the most common perception method, and there is also a method of using multi-sensor fusion. Under the condition of directly using vision as the perception unit, especially monocular vision, there are high requirements for the installation height of the camera and the vanishing point. The wrong vanishing point will often lead to inaccurate calculation of the distance and affect the forward collision warning. Accuracy and timeliness will cause delayed accidents; and wrong installation height will affect the width of calculation targets such as road signs and pedestrian width, causing filtering caused by wrong parameters, resulting in missed inspection accidents. In addit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/73
CPCG06T7/73Y02T10/40
Inventor 罗年刘群忠王嫣然滕盛弟刘吉陈康宁夏伟腾吴泳杰
Owner SHENZHEN ZHONGTIAN ANCHI CO LTD
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