By image calibration, median filtering and fast pattern matching processing algorithms, the system acquires the position information of the coordinates of the center of the circle of eccentric sprue.
经图像标定、中值滤波、快速图像匹配等处理算法，获得偏心加注口的圆心坐标位置信息。
2
The tracking control technique of triple eccentric butterfly valve is introduced. The detection position and the effect of displacement sensor are discussed in this paper.
论述了三偏心蝶阀焊缝跟踪控制方法，分析了位移传感器的检测位置及其效果。
3
Thus, an image displayed on the image display region is enlarged and projected on a position that is eccentric with reference to the reference axis.