中文说明：这是一个口形特征点粗定位程序，首先对唇部图象进行边缘检测，然后利用几何特征进行定位。
English Description：
This is a program for coarse location of lip feature points. Firstly, edge detection is performed on lip image, and then geometric features are used for location.
Rough location of mouth shape feature points
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中文说明：这是一个口形特征点粗定位程序，首先对唇部图象进行边缘检测，然后利用几何特征进行定位。
English Description：
This is a program for coarse location of lip feature points. Firstly, edge detection is performed on lip image, and then geometric features are used for location.