Stealthy Iris Scanner in the Works

Via LiveScience -

A public iris scanning device has been proposed in a patent from Samoff Labs in New Jersey. The device is able to scan the iris of the eye without the knowledge or consent of the person being scanned. The device uses multiple cameras, and then combines images to create a single scan.

Iris recognition is a biometric identification system that requires a high-resolution picture of the irides of the subject's eye. Pattern recognition software is then used to match that picture against future iris scans. Iris scans are considered highly accurate; current iris recognition algorithms have an incredibly low false match rate. Good quality scans result in a "false match" less than one time per one hundred billion (this system has been used with excellent results in the United Arab Emirates). The significant advantage of the newly proposed system is that it allows iris scans to be taken without the knowledge or participation of the subject. Read the relevant quote from the patent application:

"...a system for obtaining iris biometric information includes an array of cameras defining an image capture volume for capturing an image of an iris; and an image processor, coupled to the array of cameras, for determining at least one suitable iris image for processing from the images generated for the image capture volume ... A subject within the capture volume is repeatedly imaged to produce a plurality of images of the subject. The plurality of images are processed to extract at least one clear image of the subject's iris."