Efficient algorithm on iris image localization and eyelash detection
Xiaodong Liu · Computer Engineering and Applications Journal · 2010
An efficient algorithm on iris image localization and eyelash detection is presented.Firstly,an eye image is divided into many small rectangular regions.Image binarization is implemented taking the smallest average intensity of the regions as a threshold.The inner boundary of the iris region is found.Then the centroid of the pupil is taken as a reference point.In the left and right sector regions of the centroid,the modified Daugman’s detecting operator is utilized to search the sharp variation position of the intensity.Then the outer boundary of the iris region is located.At last,eyelash is detected by using Gobor filter and the shift window.After doing a great deal of experiments,the results show that the proposed method has an encouraging performance.