Quick Response Code Anti-counterfeit System Based On Partial Biometrics

Anti-counterfeit is vital in people’s daily life. With the forgery of credentials and in-voice becoming more and more serious,it is urgent to devise more effective anti-counterfeitmethods. A new information anti-counterfeit method can be realized by extracting theunique biometric features of the user and encoding them into2D barcode.It is more effectivethan the traditional anti-counterfeit method such as material and holographic image.2D barcode is an important kind of applications of internet of things. There are manykinds of2D barcode while QR code is the most widely used barcode. It is safe, effec-tive,and can containable. Combining it with biometric identification which is unique andinvariant,we started research and design on the basis of QR Code and biometric featurerecognition. The major work is as follows:(1)Introduce the background and current research of barcode and biometrics. DescribeQR code feature,encoding and decoding algorithm in detail.Investigate biometric identifica-tion properly,propose effective feature extraction method of fingerprint and off-line signa-ture; Extract fingerprint feature successfully using minutia and singularity feature;Expressand recognize signature successfully using graphic feature derived from moment feature.(2)Design the QR code anti-counterfeit system based on signature and fingerprint indetail,including the design of QR code generation based on fingerprint and off-line sig-nature,the encryption and digital signature, the preprocessing algorithm, the QR code de-coding and communicating algorithm based on Android. The preprocessing algorithm wasproposed,including graying,denoise,binarization,location,anti-perspective shift and interpo-lation.(3)According to the design and software engineer development method adopted,thetotal solution was realized on the platform of C#and Android.According to the evaluation,the system combines the advantages of the two to geta good result.It is a reliable and flexible, and can be applied to occasions where demandexcellent anti-counterfeit result.