Phase Correlation Based Iris Image Registration Model

Iris recognition is one of the most reliable personalidentification methods. In iris recognition systems, image registrationis an important component. Accurately registering iris images leads tohigher recognition rate for an iris recognition system. This paperproposes a phase correlation based method for iris image registrationwith sub-pixel accuracy. Compared with existing methods, it isinsensitive to image intensity and can compensate to a certain extentthe non-linear iris deformation caused by pupil movement. Experimentalresults show that the proposed algorithm has an encouragingperformance.