基于图像校正的测量移动堆料体积的标定

为了适应大型企业物流信息化管理的需要,解决煤堆等物料在运输过程中的有效计量问题,给出了基于光切图像扫描法的三维测量方法。该方法通过扫描移动堆料,获取堆料上一系列平行截面的轮廓线,并计算出截面面积,然后根据各截面面积和扫描间距解算出物体体积。为了提高测量的易用性,标定过程中采用多项式来校正图像的畸变,并讨论了控制点的选取方法和影响标定精度的因素。在此基础上,设计完成了实验检测装置,开发了处理与测量软件。对不同形状的物体进行了多次实验测试,验证了测量方法的可行性和重复性。

Calibration of measuring volume of moving stack based on image correction

In order to fit with the needs of the logistic information management in industrial enterprises and solve the effective measurement of outdoor materials,such as coal,during their transportation,a new method is provided on the basis of light-section and image scanning.In the method,a series of parallel sections are obtained by scanning a stack of moving materials,then the section area is calculated,and the volume of materials is calculated according to these sections areas and the scanning interval.At the same time,image distortion is corrected by polynomial to handle expediently and the method of selecting reference points and the factor of influencing precision is discussed.Based on this method,an experiment device is designed and software of processing and measuring is developed.It is proved by a mass of experiments on objects with different figures that the feasibility and repeatability of the new method are valid.