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A method and system for calibrating a trinocular vision system for 3D 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: 2022-05-03
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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  • A method and system for calibrating a trinocular vision system for 3D reconstruction
  • A method and system for calibrating a trinocular vision system for 3D reconstruction
  • A method and system for calibrating a trinocular vision system for 3D 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 present invention relates to a method and system for calibrating a trinocular vision system for three-dimensional reconstruction, wherein the method includes: using Zhang's calibration method to independently calibrate the internal parameters and distortion of each camera in the trinocular vision system Parameters; collect images through each of the independently calibrated cameras, and calibrate each pair of cameras in the trinocular vision system two by two based on the control points marked in the images; based on the control points in the images , the trinocular camera is calibrated by the beam adjustment parameter optimization method for the cameras that have completed pairwise calibration. The technical solution provided by this application can realize the calibration of the trinocular vision system, and the trinocular camera can obtain more abundant information, so that the accuracy of the three-dimensional reconstruction is higher than that of the 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 Patents(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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