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Method and device for acquiring position information and calibration equipment

A technology for obtaining location and equipment, which is applied in image analysis, instrumentation, computing, etc., and can solve problems such as difficult calibration and inability to correlate data

Active Publication Date: 2020-03-24
北京爱笔科技有限公司
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Problems solved by technology

However, the inventor found in the research that the real image and the data displayed by the real object in the known technology cannot be correlated, which makes calibration difficult

Method used

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  • Method and device for acquiring position information and calibration equipment
  • Method and device for acquiring position information and calibration equipment
  • Method and device for acquiring position information and calibration equipment

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Embodiment Construction

[0073] As mentioned above, when calibrating in a large scene, the real image and the data of the physical display cannot be correlated, which makes it very difficult to calibrate the parameters of the camera device.

[0074] In view of the above problems, the inventor provides a method, device and calibration equipment for obtaining location information after research. This technical solution establishes the connection between the real shot image and the physical display, which can be used to obtain the first relative positional relationship between the camera device and the actual calibration reference object, and the first relative positional relationship can be used for external parameter calibration. Therefore, the construction The above-mentioned association relationship effectively reduces the difficulty of calibration, solves the impact of data non-correlation on calibration results, and improves the accuracy and reliability of calibration.

[0075] In order to enable t...

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Abstract

The invention discloses a method and device for obtaining position information and calibration equipment. The method comprises the steps of obtaining an image which is shot by a camera device and comprises a calibration reference object; then, obtaining an association relationship between an actual calibration reference object and a calibration reference object in the image; then, based on a calibration reference object in the image and an actual calibration reference object associated with the calibration reference object, determining a first relative position relationship between the cameradevice and the actual calibration reference object. In the technical scheme of the invention, the association relationship between the actual calibration reference object and the calibration referenceobject in the image is constructed, the association relationship can be used for obtaining a first relative position relationship between the camera device and an actual calibration reference object,and the first relative position relationship can be applied to external parameter calibration of the camera device, so that the influence on parameter calibration due to the fact that an actually shot image and data displayed by a real object cannot be associated can be effectively compensated.

Description

[0001] The present invention claims the priority of the Chinese patent application submitted to the State Intellectual Property Office of the People's Republic of China on December 27, 2018, with the application number 201811612158.9, and the application name "a method, equipment and system for calibrating camera devices". The entire contents are incorporated herein by reference. technical field [0002] The present application relates to the technical field of instrument equipment calibration, in particular to a method, device and calibration equipment for acquiring location information. Background technique [0003] With the wide application of camera devices, at present, a large number of camera devices are used in many areas to monitor the area. Now there are some technologies to track moving targets in the scene by calling the images collected by the camera device deployed in the scene. [0004] Calibration of instruments and equipment is a routine method used in optic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/80
CPCG06T7/80
Inventor 林根孙鑫
Owner 北京爱笔科技有限公司
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