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Multi-camera calibration method based on optical motion capture in large-space environment and related equipment

A technology of optical camera and calibration method, applied in the field of computer vision

Active Publication Date: 2020-05-12
SHENZHEN REALIS MULTIMEDIA TECH CO LTD
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Problems solved by technology

[0004] The main purpose of the present invention is to provide a multi-camera calibration method and related equipment based on optical motion capture in a large space environment, aiming to solve the technical problems of multiple optical camera calibration in a large space environment

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  • Multi-camera calibration method based on optical motion capture in large-space environment and related equipment
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  • Multi-camera calibration method based on optical motion capture in large-space environment and related equipment

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[0067] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0068] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and / or groups thereof.

[0069] refer to figure 1 , is a schematic structural diagram of the operatin...

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Abstract

The invention relates to the technical field of computer vision, in particular to an optical motion capture-based multi-camera calibration method in a large-space environment and related equipment. The method comprises the following steps: collecting multi-frame data captured by each optical camera for a calibration rod, classifying the multi-frame data according to frames, and obtaining a plurality of corresponding initial data for each frame; removing and detecting the coordinate data of each frame to obtain a plurality of corresponding effective data of each frame; initializing each opticalcamera according to the plurality of effective data to obtain a target internal reference of each optical camera; and determining the camera serial number containing the most effective data as a maincamera, and obtaining target external parameters of all optical cameras according to internal and external parameters of the main camera. According to the method, high-precision camera internal and external parameters are finally obtained, sufficient and necessary conditions are provided for subsequent operation of converting two-dimensional space coordinates into three-dimensional space coordinates, and a foundation is laid for high-precision positioning and tracking in the whole optical motion capture system.

Description

technical field [0001] The invention relates to the technical field of computer vision, in particular to a multi-camera calibration method and related equipment in a large space environment based on optical motion capture. Background technique [0002] With the increasing application of machine vision, the demand for multi-camera vision systems in large space environments is increasing, and the main direction is high-precision positioning and tracking in large spaces. In machine vision applications, in order to determine the relationship between the three-dimensional geometric position of a point on the surface of a space object and its corresponding point in the image, it is necessary to establish a geometric model of camera imaging, which is the camera parameter. These parameters must be obtained through experiments and calculations, and the process of solving the parameters is called camera calibration. The traditional camera calibration method needs to use a calibration...

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Application Information

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IPC IPC(8): G06T7/80
CPCG06T7/80Y02T10/40
Inventor 王越许秋子
Owner SHENZHEN REALIS MULTIMEDIA TECH CO LTD
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