闭圆盘

First,skin regions are detected based on YCbCr model of skin color;each block is morphologically processed in order to smooth out the biconvex and small backdate and to fill holes.Then,skin regions are segmented.At last,a disk template is used to find the location of eye and mouth.

方法首先根据YCbCr肤色模型检测出肤色区域；用数学形态学的膨胀和腐蚀方法进行肤色处理，平滑了边界，同时消除了肤色块的连通；再利用圆盘结构元素对人脸区域做闭运算，从而得到人眼和嘴的位置。

As to complicated picture, this text proposes that one can carry on the amalgamates algorithms of overall situation optimize amalgamate the area fast most also finally,so we can avoid falling into some optimum amalgamation mistake that brings.

最后，我们采用二值开闭重建滤波器来去除前景和背景中的&小洞&（这里采用了圆盘状的结构元素，结构元素的直径为1个像素），这样就获取了最终的运动检测掩码。

Butterfly valve gate is a disc-shaped pieces of the butterfly plate in the valve body around its own axis of rotation, or adjustments to achieve the purpose of headstock.

蝶阀启闭件是一个圆盘形的蝶板，在阀体内绕其自身的轴线旋转，从而达到启闭或调节的目的。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。