The advantages of finger vein are vivo identification

internal features

non-contact and high security

but features quantity of finger vein are insufficient

and finger crease is on the surface of finger skin

and it has some stable biological features.To solve the lack of finger vein feature quantity

a new dual-modal biometric image acquisition system is designed.The hardware system consists of USB 2.0 controller

CMOS camera module with two million pixels

visible and infrared light switch circuit

micro-stepping motor drive circuit

I2C circuit

and so on.Experimental results show that this system is real-time

continuously collect clear and stable finger vein image and the finger crease image and it provides good software and hardware platform for the dual-modal biometric system.