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Method and device for acquiring calibration initial value of vehicle-mounted LiDAR measurement system

A measurement system and an acquisition method technology are applied in the field of acquiring the initial value of vehicle LiDAR measurement system calibration and calibration, and can solve the problem of low resolution, expensive total station, and lack of texture information in data. And other issues

Active Publication Date: 2019-07-26
北京申信达成科技有限公司
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Problems solved by technology

However, the price of the total station is relatively expensive, and the scanned data has the disadvantages of lack of texture information and low resolution.

Method used

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  • Method and device for acquiring calibration initial value of vehicle-mounted LiDAR measurement system
  • Method and device for acquiring calibration initial value of vehicle-mounted LiDAR measurement system
  • Method and device for acquiring calibration initial value of vehicle-mounted LiDAR measurement system

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Embodiment Construction

[0040] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although 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 for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0041] A method for obtaining the initial calibration value of a vehicle-mounted LiDAR measurement system provided by an embodiment of the present invention, refer to figure 1 shown, including:

[0042] S11, using close-range photogrammetry to collect two-dimensional images of the vehicle-mounted LiDAR measurement system to be checked;

[0043] S12. Perform registration and reconstruction on the two-dimensional image to generate a...

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Abstract

The invention discloses a method and a device for acquiring a calibration initial value of a vehicle-mounted LiDAR measuring system, which comprises the following steps: acquiring a two-dimensional image of a to-be-calibrated vehicle-mounted LiDAR measuring system by using a close-range photogrammetry mode; registering and reconstructing the two-dimensional image to generate a corresponding three-dimensional point cloud model; and fitting the three-dimensional point cloud model to obtain position data among instruments in the calibrated vehicle-mounted LiDAR measuring system. The method comprises the following steps of acquiring the two-dimensional image of the measuring system by using the close-range photogrammetry technology, fitting the two-dimensional image into the point cloud modelby using three-dimensional reconstruction, and then calculating to obtain the spatial attribute of the measuring system. The method for acquiring the calibration initial value of the vehicle-mounted LiDAR measuring system is simple and easy to implement, not only improves the data precision and enriches the texture information of the data, but also reduces the operation cost, and can provide goodtechnical support for the calibration of the vehicle-mounted LiDAR measuring system.

Description

technical field [0001] The invention relates to the field of measurement technology, and relates to a method and a device for obtaining an initial calibration value of a vehicle-mounted LiDAR measurement system, and in particular to a method and a device for obtaining an initial calibration value of a vehicle-mounted LiDAR measurement system by using close-range photogrammetry technology. Background technique [0002] The vehicle-mounted lidar measurement system can quickly and accurately monitor road conditions, which is of great significance to the development of mobile measurement. With the maturity of vehicle LiDAR measurement system technology, its penetration rate is also increasing. In order to ensure the accuracy of the vehicle-mounted LiDAR measurement system, it is necessary to regularly check the system, that is, to check the positional relationship between the various instruments of the vehicle-mounted LiDAR measurement system. [0003] The traditional method of...

Claims

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Application Information

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IPC IPC(8): G01S7/497
CPCG01S7/497G01S7/4972
Inventor 郭可才
Owner 北京申信达成科技有限公司
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