On the basis of thread image acquisition, the edge of axial-section contour threads was obtained through using the edge detection algorithm.
在获取螺纹图像的基础上，通过边缘检测算法获取螺纹轴剖面外轮廓的边缘。
The system used image manipulation method to measure geometrical parameters, including binary image production, edge detection, contour hunting and the thread geometrical parameter calculation.
探讨了利用数字图像处理技术进行锥螺纹几何参数测量的方法，并给出了锥螺纹部分的尺寸测量结果。
Among them algorithm partly includes to be drawn laser thread module, calculation contour module and takes the center color thread module;
其中算法部分包括提取激光线模块、计算轮廓线模块、取中心颜色线模块；
Various NC programs to machine sphericity thread form based on ellipse contour are developed using macro programs. This method can be used for the contour machining of all types of conic.
举例编制了椭圆轮廓上球形螺纹的宏加工程序，此方法适用于所有二次曲线的球形螺纹加工。
Various NC programs to machine sphericity thread form based on ellipse contour are developed using macro programs. This method can be used for the contour machining of all types of conic.
举例编制了椭圆轮廓上球形螺纹的宏加工程序，此方法适用于所有二次曲线的球形螺纹加工。
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