Palmhash Code for palmprint verification and protection

摘要

The security and privacy of biometric template has become a hot issue with the development of biometric technology. Palmprint verification has a high accuracy thank to texture coding methods, so it is urgent to develop nice cancelable palmprint coding scheme based on texture feature. PalmHash Code is proposed as a secure and effective cancelable palmprint coding framework in this paper. Three generation mechanisms of PalmHash Code are introduced and compared. Beside, two measures, perpendicular orientation transposition and multi-orientation score level fusion, are used to improve the performance of PalmHash Codes. The experimental results and analysis confirm that PalmHash Code enhanced by the two measures meet the four objectives of cancelable biometric satisfactorily.