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Camera external parameter automatic calibration method and automobile data recorder

An external parameter and automatic calibration technology, which is applied in the field of image processing, can solve the problems of cumbersome calibration process, etc., and achieve the effect of improving execution efficiency, simplifying data processing difficulty, and convenient and quick calibration

Pending Publication Date: 2020-08-21
蘑菇车联信息科技有限公司
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Problems solved by technology

[0004] The calibration of camera external parameters in related technologies is based on binocular or multi-eye cameras, and requires a large amount of data processing, and the calibration process is cumbersome

Method used

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  • Camera external parameter automatic calibration method and automobile data recorder
  • Camera external parameter automatic calibration method and automobile data recorder
  • Camera external parameter automatic calibration method and automobile data recorder

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Embodiment Construction

[0020] Preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although preferred 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 to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0021] The terminology used in the present disclosure is for the purpose of describing particular embodiments only, and is not intended to limit the present disclosure. As used in this disclosure and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as used herein refers to and incl...

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PUM

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Abstract

The invention relates to a camera external parameter automatic calibration method, device and equipment. The method comprises the steps: acquiring an image shot by a monocular camera installed on a vehicle; acquiring monocular camera rotation parameters according to the image, including identifying an upper region and a lower region in the image according to a preset rule, and determining a monocular camera pitch angle according to a ratio of the upper region to the lower region; and obtaining a connecting line between two symmetrical points of the vehicle body along the axis in the image, andcalculating an included angle between the connecting line and a horizontal line to determine a rolling angle. According to the scheme provided by the invention, the external parameters of the monocular camera can be automatically calibrated, and the requirement of a high-precision map is met.

Description

technical field [0001] The present disclosure relates to the technical field of image processing, in particular to a method for automatically calibrating external parameters of a camera and a driving recorder. Background technique [0002] At present, map applications based on GPS navigation system or Beidou navigation system are becoming more and more common. In order to improve the recognition accuracy of the map application, it is necessary to measure the road with the help of an image acquisition vehicle. [0003] Under related technologies, in order to draw high-precision maps, it is necessary to install a driving recorder and GPS on the collection vehicle, and the driving recorder takes pictures of road images with the help of a binocular or trinocular camera. When processing the photographed image, it is necessary to obtain the external parameters of the camera to establish the correspondence between the camera coordinate system and the world coordinate system. Sinc...

Claims

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Application Information

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IPC IPC(8): G06T7/80G06T7/11G07C5/08
CPCG06T7/80G06T7/11G07C5/085G06T2207/10004
Inventor 贾双成李成军
Owner 蘑菇车联信息科技有限公司
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