The identification technology based on multi-biometric can greatly improve the applicability, reliability and antifalsification.
This paper presents a multi-biometric system bases on embedded system, which includes: three capture
daughter boards are applied to obtain different biometric: one each for fingerprint, iris and vein of the back of hand;
FPGA (Field Programmable Gate Array) is designed as coprocessor, which uses to configure three daughter boards on
request and provides data path between DSP (digital signal processor) and daughter boards; DSP is the master processor
and its functions include: control the biometric information acquisition, extracts feature as required and responsible for
compare the results with the local database or data server through network communication. The advantages of this
system were it can acquire three different biometric in real time, extracts complexity feature flexibly in different
biometrics' raw data according to different purposes and arithmetic and network interface on the core-board will be the
solution of big data scale. Because this embedded system has high stability, reliability, flexibility and fit for different
data scale, it can satisfy the demand of multi-biometric recognition.