受检者睁蛝，检查眼睛位置。注意结膜是否理垂。
A. Inspect eye position eyes open. Note if any portion of lower conjunctiva is visible.
另一方面，大多数还腿和数海豚的眼睛位置标明他们有前面和下面的立体视觉。
On the other hand, the position of the eyes in most dolphins and porpoises suggests that they have stereoscopic vision forward and downward.
首先在二值图像上去掉头发，利用灰度投影和区域生长的方法分别粗定位和精确定位眼睛位置。
Firstly, we should remove hair in binary image, and then locate eyes' position with the method of gray projection and area growth.
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