Recognition System For Two-dimentional Bar Code With Palmprint Feature

In information security, biometric feature authentication technology offers a good solution to make balance between complexity of design and level of security. And two-dimentional bar code system is a information carrier system with high security in non-network situation. It is a considerable and portable database that can achieve synchronism in the stream of people, foods and information. Therefore, the biometric feature authentication technology and two-dimentional bar code technology both support high security.At present, not only biometric feature authentication but also two-dimentional bar code has a great development and specific application. With the scientific attitude of finding a new application for the intersect subject, this paper have observed the development of those technology in internal and international and studied the successful develop object. Based on the superiority of reuse methodology and advanced Nios II softcore processor, we design the specific recognition system of two dimentional bar code embedded the biometric feature in the embedded platform. We select the palm feature to do this design, because it is regard as an important issue in international and our lab have a strong theoritical base on it.In the guide of reconstruct technology, this thesis integrated the palm feature authentication and two-dimentional bar code recognition in an existent PCB board to minimize the cost, complexity and power of the system. This thesis have two part of research importance: first, we use the new ALTERA's C2H acceleration to accelerate the preprocess program of palm feature in order to improve the performance of system. Second, because former system have a bad result in authentication of the datus that is outside of the database, we develop an arithmetic of pre-processing based on weighted-function in palm in order to increase the security and stability of system.