Tuyển tập các báo cáo nghiên cứu về hóa học được đăng trên tạp chí hóa hoc quốc tế đề tài : Retina identification based on the pattern of blood vessels using fuzzy logic | Barkhoda et al. EURASIP Journal on Advances in Signal Processing 2011 2011 113 http content 2011 1 113 o EURASIP Journal on Advances in Signal Processing a SpringerOpen Journal RESEARCH Open Access Retina identification based on the pattern of blood vessels using fuzzy logic Wafa Barkhoda1 Fardin Akhlaqian1 Mehran Deljavan Amiri1 and Mohammad Sadeq Nouroozzadeh2 Abstract This article proposed a novel human identification method based on retinal images. The proposed system composed of two main parts feature extraction component and decision-making component. In feature extraction component first blood vessels extracted and then they have been thinned by a morphological algorithm. Then two feature vectors are constructed for each image by utilizing angular and radial partitioning. In previous studies Manhattan distance has been used as similarity measure between images. In this article a fuzzy system with Manhattan distances of two feature vectors as input and similarity measure as output has been added to decisionmaking component. Simulations show that this system is about accurate which make it superior to a great extent versus previous studies. In addition to high accuracy rate rotation invariance and low computational overhead are other advantages of the proposed systems that make it ideal for real-time systems. Keywords retina images blood vessels pattern angular partitioning radial partitioning fuzzy logic 1. Introduction Biometric is composed of two Greek roots Bios is meaning life and Metron is meaning measure. Biometrics refers to human identification methods which based on physical or behavioral characteristics. Finger prints palm vein face iris retina voice DNA and so on are some examples of these characteristics. In biometric usually we use body organs that have simpler and healthier usage. Each method has its own advantages and disadvantages and we could combine them with other security methods to resolve their drawbacks. .
