The hinge is the point of maximum curvature in a fold.
枢纽是褶曲中弯曲度最大的点。
To realize center point positioning of fingerprint, method of maximum curvature is widely used at present. But it is inaccurate when the center region of fingerprint has been lost or not clear.
目前广泛采用最大曲率方法实现指纹中心定位,但在指纹中心缺失情况下,该方法定位并不准确。
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