Objective:To provide morphological evidences for the reasons of the visual field defect caused by the optic chiasm compressing through saddle area tumors.
目的：为鞍区肿瘤压迫视交叉引起视野缺损原因提供形态依据。
2
Then, based on mathematical morphological, it extracts the density of defects and the model distribution of the defect size also.
然后基于数学形态学方法提取出薄膜表面缺陷的密度；最后给出了薄膜表面缺陷粒径的分布模型。
3
The mechanism of surface defect formation was analyzed by SEM observations. The optimal growth conditions for obtaining a good morphological surface were determined.