一种基于模板匹配的绝对位移测量方法

A Method of the Absolute Displacement-measuring Based on the Template-matching

基于数字图像进行位移测量研究时,由于采用数字图像特征区域匹配的方法测量位移的测量误差容易累积,采用基于人工标志的数字图像绝对测量法,虽然避免了误差累积,但人工标志加工制作的难度高。因此,文中提出了一种新的测量原理。在一定的实验装置下,通过标定模板及模板匹配完成位移测量。对于模板匹配采用逐步搜索法搜索,依据一定的相似性判据建立相关判别函数完成。最后通过实验验证了该原理的可行性。

Studying the methods of measuring displacement which is based on digital image,it is easy to accumulate the measurement error when using the digital image that match the characteristics region measured the displacement. Meanwhile, based on the artificial signs of the digital image,it is difficult to manufacture the artificial signs though it can avoid the cumulative error. Therefore, this paper presents a new measurement principle. In a certain experimental device, it can complete the displacement measureme...