Institute of Research and Journals (IRAJ)
Iris recognition, the ability to recognize and distinguish individuals by their iris pattern, is one of the most reliable biometrics in terms of recognition and identification performance. Image feature extraction is one of the basic works for biometric analysis. This paper reviewed the literature regarding iris recognition. It explains need and significance of this research. Hypothesis on iris recognition is also explored. Different stages of iris recognitions are also explained and at the last it clarifies how Contoulet transform is more admissible for iris feature extraction.