用一种简单方法来近似圆形槽波导的曲线金属边界。
A simple way is used to approximate the curvilinear metal boundary of circular groove guide.
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.
目的：为头皮肿瘤、瘢痕等切除后形成的近似圆形的头皮缺损，寻求一种较简便安全、损伤小、无秃发的即刻修复方法。
Objective To seek a simple, safe, less trauma, imbaldness and effective method for the instant repair of scalp defects either after the excision of a head tumor, or cicatricial alopecia areata.
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