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Camera external parameter calibration method and device

A camera and external parameter technology, applied in the field of intelligent transportation, can solve the problem of time-consuming calibration of external parameters, etc.

Pending Publication Date: 2020-08-07
HANGZHOU HIKVISION DIGITAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] Since the external parameters of the camera are manually measured, it will take a long time to calibrate the external parameters

Method used

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  • Camera external parameter calibration method and device
  • Camera external parameter calibration method and device
  • Camera external parameter calibration method and device

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Embodiment Construction

[0094]In order to make the purpose, technical solution and advantages of the present disclosure clearer, the implementation manners of the present disclosure will be further described in detail below in conjunction with the accompanying drawings.

[0095] An embodiment of the present disclosure provides a method for calibrating external camera parameters. The execution subject of the method may be a terminal device, and the terminal device may be a computer. The terminal device may be equipped with a processor, a memory, and a transceiver. The processor may use For the processing of the camera external parameter calibration process, the memory can be used to store the data required and generated during the camera external parameter calibration process, and the transceiver can be used to receive and send data, and can receive image data captured by the camera, etc. The terminal device may also be provided with input and output devices such as a screen, and the screen may be used...

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Abstract

The invention provides a camera external parameter calibration method and device, and belongs to the field of intelligent transportation. The method comprises the following steps of: when calibratingthe external parameters of the camera, in an image coordinate system, obtaining calibrating position coordinates of each angular point of the calibration plate in an imaging point of the image when acalibration plate is located at a first position and a second position; and then determining the external parameters of the camera according to the position coordinates of the imaging point of each angular point in the image, the position relationship between the first position calibration plate and the target reference point of the vehicle and the position relationship between the second positioncalibration plate and the ground and the position relationship between the second position calibration plate and the target reference point of the vehicle and the ground. By adopting the method and the device, the calibration time of the external parameters can be saved.

Description

technical field [0001] The present disclosure relates to the field of intelligent transportation, in particular to a method and device for calibrating external parameters of a camera. Background technique [0002] With the development of computer technology and network technology, the advanced driving assistance system has gradually become an important part of intelligent transportation. The advanced driving assistance system uses various sensors (such as cameras) installed on the vehicle to collect real-time environmental data inside and outside the vehicle , carry out the identification, detection and tracking of static and dynamic objects, and remind the driver based on the identification, detection and tracking results, so that the driver can detect possible dangers in the fastest time. [0003] In related technologies, multiple types of sensors generally include cameras, which can be used to measure distances to objects in front of the vehicle. After installing the came...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/80
CPCG06T7/80Y02T10/40
Inventor 余倩
Owner HANGZHOU HIKVISION DIGITAL TECH
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