Vehicle-mounted binocular camera calibration and parameter verification method

A technology for binocular camera and parameter verification, applied in the field of vision processing, can solve problems such as difficult realization, and achieve the effect of low cost

Active Publication Date: 2016-06-01
HUBEI UNIV OF TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Strictly speaking, the system must be recalibrated every time an impact occurs, which is not easy to achieve in industrial applications

Method used

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  • Vehicle-mounted binocular camera calibration and parameter verification method
  • Vehicle-mounted binocular camera calibration and parameter verification method

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Embodiment Construction

[0038] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments, but the embodiments should not be construed as limiting the present invention, but only as examples, and the advantages of the present invention will become clearer and easier to understand.

[0039] As shown in the accompanying drawings, the front windshield 1 corresponding to the co-pilot of the car 0 is connected to the fixed base device 3 by a suction cup; the fixed base device 3 is connected with a camera bracket device 5 through a knob screw 4; the camera bracket device 5 The lower end is connected with a camera 9; the rear end of the camera car is provided with a data interface 7 and a power supply interface 8; the top of the front end of the camera 9 is also provided with a buffer device 6; the edge of the suction cup is provided with an edge fixing device; The base device 3 is a glass fiber reinforced PPS fixed base device; the camera su...

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Abstract

The invention discloses a vehicle-mounted binocular camera calibration and parameter verification method. The method includes a calibration stage and a verification stage, wherein the verification stage includes static verification and dynamic verification. According to the static verification, standing conical barrel markers before an automobile are adopted; internal and external parameters of a camera obtained in a binocular ranging formula verification calibration stage are utilized; the conical barrels are distributed at view regions of the imaging of the camera; and the relative error rate of the view regions is tested. According to the method of the invention, based on binocular camera ranging principles, a vehicle-mounted binocular camera ranging model for an outdoor real scene is constructed, and an operation basis can be provided for the reconstruction of a real three-dimensional scene in the binocular camera visual processing field. Vehicle-mounted binocular cameras are one of key research directions in realizing intelligent driving; and intelligent driving usually adopts a high-precision radar to obtain high-quality perception effects, while, cost is also very high, and the vehicle-mounted binocular camera calibration and parameter verification method of the invention can be matched with an ordinary radar and camera so as to improve vehicle intelligent identification accuracy to a level within 1 m.

Description

technical field [0001] The invention relates to the field of visual processing, in particular to a method for calibrating and verifying parameters of a vehicle-mounted binocular camera. Background technique [0002] In image measurement and machine vision applications, there is a one-to-one mapping relationship between the three-dimensional geometric position of objects in space and the corresponding pixels of camera images, and binocular vision models are usually used for measurement. Establishing the camera imaging model is to solve the internal and external parameters of the camera. The process of solving for these parameters is called camera calibration. Zhang Zhengyou, Brown and others researched the camera calibration algorithm, making the camera calibration operation process simple and convenient. But their experiments were all in a laboratory setting. In industrial applications, due to the technical defects in the structural devices, the working environment, place...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00
Inventor 张颖江潘尧袁方吴聪辛梓
Owner HUBEI UNIV OF TECH
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