Focusing stages

Thin-layer lateral logging technology with digital focus;

数字聚焦薄层侧向测井技术

Then,the method puts forward focusing function based projection,finding text regi.

首先利用Roberts算子进行边缘提取,提出基于自适应阈值进行二值图像处理,利用数学形态学中的腐蚀算子消除非直线因素的影响,突出直线特征;然后提出基于聚焦函数的投影方法,找到需要的文本区域,完成文本提取。

It was suggested that the feature of the concentrator can be characterized by a concentration parameter K ,and a simple model is then proposed,of which K is dependent on the magnetic permeability of the material and the demagnetization factor of the device.

提出了磁聚焦器的聚焦能力可以用聚焦参数K来描述 ,并得到聚焦参数由材料的磁导率和器件的退磁因子决定的理论公式 。