一种提高CCD测量精度的新方法

A New Method for High Accuracy in CCD Measurement

从改变CCD测量系统硬件构成出发 ,提出了一种提高CCD边缘测量精度的新方法。其实质是用光学方法将输入图像进行展宽 ,使CCD能够获得更多的边缘信息 ,再用数学方法对其进行处理 。

A new method for high accuracy in CCD edge measurement has been proposed by changing hardware composition of CCD system.Through widening the image input, more details will be get . At last the accurate position is recovered by using mathematical method.