Accuracy of measurement of face runout is enhanced effectually by use of least square method of compressing rectangle fitting edge of image and transforming of DFT.
用压缩矩形的最小二乘法拟合工件端面图像的边缘以及用DFT变换对工件端面的跳动量进行测量，使端面跳动测量的准确性得到了很大的提高。
Accuracy of measurement of face runout is enhanced effectually by use of least square method of compressing rectangle fitting edge of image and transforming of DFT.
用压缩矩形的最小二乘法拟合工件端面图像的边缘以及用DFT变换对工件端面的跳动量进行测量，使端面跳动测量的准确性得到了很大的提高。
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