In both cases, in order to allow or deny access, software analyzes the geometric pattern of minutiae, such as the ridges and valleys that are unique to every finger, and compares it with patterns registered by legitimate users.

• 以上两种装置要决定允许或拒绝存取，都必须利用软体分析指纹特徵点的几何图案，例如每根手指特有的脊纹与沟纹，然后再与合法使用者登录的指纹模式进行比对。