Calibration method and system of trinocular vision system for three-dimensional reconstruction

A visual system and 3D reconstruction technology, applied in the field of data processing, can solve problems such as complex calibration and achieve high 3D reconstruction accuracy

Active Publication Date: 2020-05-08
JIANGSU HAOHAN INFORMATION TECH
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Problems solved by technology

Compared with the traditional binocular vision system, the trinocular vision system involves three cameras, and its calibration is more complicated

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  • Calibration method and system of trinocular vision system for three-dimensional reconstruction
  • Calibration method and system of trinocular vision system for three-dimensional reconstruction
  • Calibration method and system of trinocular vision system for three-dimensional reconstruction

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[0035] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The implementations are only some of the implementations of the present application, not all of them. Based on the implementation manners in this application, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0036] This application provides a calibration method for a trinocular vision system for 3D reconstruction, please refer to figure 1 , the method includes the following steps.

[0037] S1: Independently calibrate the internal parameters and distortion parameters of each camera in the trinocular vision system usi...

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Abstract

The embodiment of the invention relates to a calibration method and a system of a trinocular vision system for three-dimensional reconstruction, and the method comprises the steps: employing a Zhang calibration method to independently calibrate the internal parameters and distortion parameters of each camera in the trinocular vision system; collecting an image through each camera after independentcalibration, and calibrating each pair of cameras in the trinocular vision system in pairs based on the marked control points in the image; and based on the control points in the image, calibrating atrinocular camera by adopting a beam adjustment parameter optimization method for the cameras which finish pairwise calibration. According to the method provided by the invention, the calibration ofthe trinocular vision system can be realized, and the trinocular camera can obtain more abundant information, so that the precision of three-dimensional reconstruction is higher than that of a binocular camera.

Description

technical field [0001] The present application relates to the technical field of data processing, in particular to a calibration method and system for a trinocular vision system used for three-dimensional reconstruction. Background technique [0002] Vision-based 3D reconstruction technology is an important problem in the field of computer vision, and has a wide range of applications in the fields of distance detection and scene reconstruction. The currently commonly used 3D scene reconstruction method is based on binocular vision, using two visual sensors to simulate human visual imaging to achieve 3D scene reconstruction. Due to the accuracy of reconstruction, 3D reconstruction based on trinocular vision has gradually attracted everyone's attention. [0003] In the 3D reconstruction problem based on multi-eye vision composed of multiple cameras, camera calibration is a prerequisite and key issue for 3D reconstruction. Compared with the traditional binocular vision system...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/80
CPCG06T7/85
Inventor 李学钧戴相龙蒋勇王晓鹏何成虎杨政
Owner JIANGSU HAOHAN INFORMATION TECH
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