Minitype Embedded System Of Fingerprint Recognition On DSP Plat

Biometric is honored one of the top ten techniqueses that will change mankind's life style for the future. There are various biometric identifiers : face, iris, voice, hand geometry, hand vein, fingerprint, signature...etc. The fingerprint recongnition was adopted widely now, it have already shared 50% biometric product market. Its applied history is most long-last, applied realm is most extensive. The fingerprint recongnition system is ideal in many ways, for example: performance, price, stability, mature degree, it is easy to be accepted by the people. The more safe and convenient fingerprint recognition system is replacing the traditional person recognition method of password, IC card, RFID etc, that is already the generally accepted development trend gradually, and already expands to the universality.The fingerprint recognition system can be divided into two type according to the application and the form. A kind of the system is based on PC host, the fingerprint capturer as peripheral. The fingerprint capturer is only responsible for catching the image and deliver fingerprint image to the standard interface of PC, the operation handle and all functions be carry out by the host resources. Another is a kind of independent work embedded system that is to take the embedded processor as the core, link the fingerprint capturer and other peripheral chip.The embedded fingerprint recognition system is composed of many advanced technique of the digital image processing, the intelligence mode recognition, embedded system...etc. Many kinds of fingerprint recognition product are small physical volume, low cost, flexible independent work system, be apply in each kind of place of bank, army, government, business enterprise, family...etc. They have very extensively economic benefit and social benefit. Currently the embedded fingerprint recognition system product category contain the fingerprint access controller, the fingerprint lock, the fingerprint safe, the fingerprint gun cabinet, the fingerprint pocketPC, the fingerprint cellular phone...etc.Applied form of the embedded fingerprint recognition system is to combine together with original product. for example, the fingerprint lock is to combine with the tradition lock industry, the fingerprint access controller is to combine the safety industry, the fingerprint pocketPC is to combine with the PC industry, the fingerprint cellular phone is to combine with the cellular phone industry. The physical volume and the power consume of the embedded fingerprint recognition system is smaller and lower, each kind of product is more easy to combine with original industry, the application method is more flexible. Now, the physical volume and the system power consume of the embedded fingerprint recognition system is still big and high, that limits its application expanding and entering the new industry realm,...