Ashwina Soekhoe

Intoduction

Eyes

No other biometric offers as much information as our eyes. The potential of eye-scan

eyes.The potential of eye-scan identification has been known for decades. Both the iris and the retina are

                       distinctive, and remain stable over time. Retinal  
                       scanning was first conceived in the 1970s, but the invasiveness and costs associated with imaging the retina prohibited widespread market acceptance. The concept of iris recognition was patented in 1986, and the software algorithms to realize the technology emerged in the mid nineties. Iris recognition is less invasive, less expensive, and highly accurate, which has earned the technology top billing in high-security applications and Hollywood blockbusters alike.

Future Perspectives

According to Lina Page, Director of Marketing for Iridian Technologies, "Iris-recognition success stories include restricted-access solutions in airports and nuclear power plants, and work is underway to implement the technology at border crossings and customs checkpoints. Your iris is already your passport in the Netherlands and Canada, where trusted travelers can bypass lengthy customs and immigration lines by enrolling in a fastpass program for a small fee. And Japan is testing iris recognition in airline ticket kiosks." Future developments might lead iris recognition into shopping malls, ATMs, maybe even the local convenience store. "Eye-d?"

Science meets the silver screen Eye-scan identification is the biometric technology most lauded by Hollywood. But, as David Johnston, VP of Marketing at LG Electronics, points out "Hollywood depictions are more than a little fanciful. Instances of circumventing the technology by etched contact lenses and enucleated eyeballs (though visually interesting plot enhancements that make good theater) misrepresent the robustness of the technology. There are complex countermeasures inherent in the design of the systems, and progress on new generations of anti-tamper deterrents is a major part of product development by the real players in the sector."

Science reality Unlike the systems in filmic portrayals of the technology, iris-recognition products use digitized representations of images from near-ordinary video cameras. Laser-scanning devices are non-existent. In most iris-scanning systems on the market, specialized detectors sensing only infrared light are used. Iris-recognizing security systems know to automatically image and authenticate users who place their eyes in the correct position. Colored lights are sometimes used to guide a person to the camera's sweet spot. Top-end systems can accommodate users wearing eyeglasses, contacts, or sunglasses. The technology can be used to log a person onto a workstation or as a checkpoint for physical access to a secure area.