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

Figure 5

Edge-map generation techniques for pupil localization: (a) thresholding based technique resulting in wrong pupil localization; (b) edge detection based technique resulting in wrong pupil localization; (c) proposed technique based on combining (a) and (b) using logical ANDing, which results in correct pupil localization.