The Study Of A Fingerprint Identification System's Implementation Based On VC5409 DSP

Automatic fingerprint identification is a method to identify a person based on his fingerprint characteristics.Compared to the traditional identification ways such as using passwords or PIN numbers,fingerprint identification is inherently more reliable and more capable in differentiating an authorized person from a fraudulent impostor. Now most of the automatic fingerprint identification systems are realized on the PC-based platform. But the newly developed market for civil application has demand more for system's portability and convenience. So the trend of miniaturizing and embedding the system for Automatic fingeprint identification become more and more distinct. A fingerprint identification system applied on mobile based on the C5409 DSP has been developed. After gathering and classifying information,we researched the key method of new fingerprint identification methods and the key technology,which is image preprocessing and feature points obtaining and matching. We optimized the algorithm properly and proved performance of the algorithm. In this paper, we presented design process of the hardware, including hardware constitution and appliance selection. Test result shows that our designed terminal may meet the requirement of identifying fingerprints.