一种基于参考平面的直线距离测量方法

A Method for Linear Distance Measurement Based on Reference Plane

作者：樊庆文(四川大学空天科学与工程学院)；王骁鹏(四川大学空天科学与工程学院)；王德麾(四川大学空天科学与工程学院)；王之魁(四川大学制造科学与工程学院)

Author：Fan Qingwen(School of Aeronautics Sci. and Eng.,Sichuan Univ.)；Wang Xiaopeng(School of Aeronautics Sci. and Eng.,Sichuan Univ.)；Wang Dehui(School of Aeronautics Sci. and Eng.,Sichuan Univ.)；Wang Zhikui(School of Manufacturing Sci. and Eng.,Sichuan Univ.)

收稿日期：2013-07-17 年卷（期）页码：2013,45(6):157-161

期刊名称：工程科学与技术

Journal Name：Advanced Engineering Sciences

关键字：数字图像；参考平面；定标物；灭点

Key words：digital image;reference plane;calibration objects;vanishing point

基金项目：成都市科技计划资助项目(10GGYB484GX-23)

中文摘要

根据射影几何中的灭点原理提出了一种基于参考平面的直线距离测量方法。在已知标定相机内部参数的前提下，利用放置在参考平面（如地平面）上，已知尺寸的平面矩形作为标定物，建立相机与参考平面间的空间关系。在相机位置和焦距不变的情况下，拍摄一张数字图像，可以利用基于参考平面的直线距离测量方法计算参考平面中任意两个特征点间的直线距离。提出的测量原理和方法具有定标物和测量步骤简单、测量精度高的特点，在工程测量领域具有广泛的应用价值。

英文摘要

A method for linear distance measurement based on reference plane was proposed according to the vanishing point principle.The spatial relationship between camera and reference plane was established with the known dimension rectangular calibration objects on the premise of the known camera internal parameters.Keeping the camera position and focal length unchanged and shooting a digital image,the linear distance between two feature points in reference plane was calculated.This method has the characteristics of calibration and high precision.

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论文摘要

一种基于参考平面的直线距离测量方法

A Method for Linear Distance Measurement Based on Reference Plane