A Two-dimensional Coding And Decoding System Based On Fingerprint

With the rapid development of Internet,people's lifestyles are constantly changed imperceptibly,and E-commerce era has arrived.There is no doubt that E-commerce provides a great convenience for our lives,however,the network security problem has attracted wide attention.The weakness of identity authenticat ion in the payment is an outstanding performance of the network security problem.To solve this problem, to combine the Q R code technology with fingerprint recognition technology,this paper designs a two-dimensional coding and decoding system based on fingerprint.Firstly,this paper discusses the development status and principle analysis of the two key technologies involved——the QR code technology and fingerprint recognition technology.Then,on the basic of adequate understanding for operation principles of t he two key technologies, this paper has made an intensive study of fingerprint image processing,and puts forward a hybrid algorithm and a ridge tracing algorithm based on 8-neighnor lookup-table method to extract fingerprint feature.Once more, in response to the difficulty of integration of two technologies——fingerprint data compression,this paper puts forward a new compression algorithm b y analyzing the relationship between classes.Finally,the function of the whole system has been tested.The results show that system operates normally and the design goal has been achieved.At the end of this paper,on the one hand,a summary is carried out on the research,on the other hand,some ideas are suggested to improve system performance.