A Novel Edge-Map Creation Approach for Highly Accurate Pupil Localization in Unconstrained Infrared Iris Images

Figure 3

The proposed edge-map creation for pupil localization: (a) optimal edge-map (Image ()) contains the pupil edges only; (b) optimal edge-map (Image ()) contains the pupil edges and the false edges. The images in (a) and (b) are () an iris image from CILV3; () smoothed iris image; () binary image, obtained from (); (4) cleaned binary image, obtained from (); () edge-detected image of (); () edge-detected image of (); () optimal edge-map, obtained using intersection operation on () and (); () pupil localized iris image, obtained using CHT on ().

(a)  

(b)