基于单目视觉的堆场集装箱高度检测系统的标定方法  

Calibration Method for Height Detection of Yard Container Based on Monocular Vision

作　　者：魏静静[1] 贺俊吉[1] 

机构地区：[1]上海海事大学物流工程学院,上海201306

出　　处：《工业控制计算机》2015年第10期95-96,99,共3页Industrial Control Computer

摘　　要：针对堆场集装箱高度检测系统,提出了一种基于单应矩阵的标定方法。首先采用点对应法得到地面与相机像面间单应矩阵H,然后利用堆场集装箱高度检测系统的一些约束条件,结合相机线性透视成像原理可由H求得Hn即层数为n的集装箱上表面与相机成像平面间的单应矩阵,并利用集装箱尺寸的测量对标定结果进行验证。实验结果表明,所提出的标定方法简单易行,能有效地简化标定步骤,在堆场集装箱高度检测系统中有很大的应用价值。A calibration method based on homography is proposed to use in the height detection system of yard container.Firstly,it obtains the homography between the ground and camera imaging plane by point-to-point method.Then combined with the linear camera perspective imaging principle and under some constrains of the system,can get which is the homography between the upper surface of container and camera imaging plane from H,check the calibration results by measure the length of the container.

关 键 词：单目视觉 线性透视原理 堆场集装箱 单应性矩阵 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]