Resumen
The objective of the invention is to be used to discern people's method and relevant device thereof, described method is introduced in the scrambling of posterior surface of cornea maps different in each individuality as each individual bio-measurement constant and definite factor.The present invention is based on following operation: take the image of the second eye dioptric specially, purpose is to determine that its surperficial map is with respect to the scrambling of normalization surface (sphere, elliposoidal, annular etc.) and with its quantification; The one group of attribute character that produces everyone comes as Verification System, that is to say to use the calculating that changes and carry out with described variation as biometric characteristic.Owing to can under situation, take, and can repeatedly take on demand, be proved to be safe so far so take pictures without any the taboo disease.