It gets the first order differential of the image data and acquires its local center of gravity as characteristics of the edge so as to improve the accuracy and stability.
提出了对图像数据进行一阶微分并求其局部重心点作为其边缘特征点，以提高测量稳定性和测量精度。
It gets the first order differential of the image data and acquires its local center of gravity as characteristics of the edge so as to improve the accuracy and stability.
提出了对图像数据进行一阶微分并求其局部重心点作为其边缘特征点，以提高测量稳定性和测量精度。
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