高尔顿发明的指纹细节特征理论是指纹学的经典理论之一 ,但对细节特征量少的指纹检验时 ,该理论的不足是明显的。而根据拓扑学的理论 ,将指纹化作函数定义域 ,只要能证明这有限的特定的函数定义域中每个点都一一对应 ,就能证明两枚指纹具有相同的拓朴性质。这一理论可以进一步提高指纹鉴定的精确性。 Galton invented the fingerprinting feature theory is one of the classic fingerprinting theory, but the lack of details of the fingerprint feature when the test, the lack of theory is obvious. According to the topological theory, the fingerprints are transformed into function domain. As long as we can prove that there is a one-to-one correspondence between each point in the finite function domain, we can prove that the two fingerprints have the same topological property. This theory can further improve the accuracy of fingerprinting.