利用数学形态学对含有胎儿头部轮廓的医学图像进行预处理，提取近似圆形的胎儿大脑轮廓的骨架。
Medical Images including head outline are preprocessed by using mathematical morphology, and the skeleton of fetus' head outline with an approximate rotundity can be extracted.
本系统建了一个包含50个人脸图象的数据库，实验结果表明这种方法可以有效地获取头部轮廓和人脸特征点。
A database involving 50 images of human face is built up by this system. Head outline and feature points of human face can be effectively achieved by this method, as shown by experimental results.
css—grid css文件被用来组织布局和结构。通过定义基本的头部，底部和列设置为你网站的创建轮廓，线框模型(winframe)。
Grid.css -a grid CSS file can have your layout structure (and act as the wireframe of your site, by defining the basic header, footer, and column set up).
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