Title :
Use fractional calculus in iris localization
Author :
Lu, J. ; Xie, M.
Author_Institution :
Coll. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu
Abstract :
Iris localization is one of the most important steps in iris recognition system and determines the accuracy of matching. In this paper, a new method for iris localization is proposed. Firstly, we adopt edge points detecting to find out the irispsila inner boundary[1]. Next, using the fractional differential edge detector [2], the coarse outer boundary will been founded, and then obtain four edge points through four certain directions. Finally, we compare the four edge points and find out the outer boundary. The algorithm is proved to be effective through our experiments on 2400 iris images from CASIA (The Institute of Automation, Chinese Academy of Sciences) database.
Keywords :
edge detection; CASIA database; The Institute of Automation, Chinese Academy of Sciences; fractional calculus; fractional differential edge detector; iris localization; Automation; Biometrics; Detectors; Educational institutions; Face recognition; Fingerprint recognition; Fractional calculus; Image edge detection; Iris recognition; Speech recognition;
Conference_Titel :
Communications, Circuits and Systems, 2008. ICCCAS 2008. International Conference on
Conference_Location :
Fujian
Print_ISBN :
978-1-4244-2063-6
Electronic_ISBN :
978-1-4244-2064-3
DOI :
10.1109/ICCCAS.2008.4657925
