BIOMETRIC INFORMATION CORRECTION APPARATUS, BIOMETRIC INFORMATION CORRECTION METHOD AND A COMPUTER-READABLE RECORDING MEDIUM FOR BIOMETRIC INFORMATION CORRECTION

摘要

A biometric data correcting method includes the followings steps of generating a second biometric image by applying a correction process which improves the clarity of the biometric data of a user about a first biometric image which shows the biometric data of the user; extracting a first feature value which indicates the feature of biometric data from the first biometric image and a second feature value which indicates the feature of biometric data from the second biometric image; calculating a change which indicates a difference between the first feature value and the second feature value; and outputting the first feature value in case the change indicates that an artifact is generated in the second biometric image.