Publications

Optical requirements with turbulence correction for long-range biometrics

Choi, Junoh; Soehnel, Grant H.; Bagwell, Brett B.; Dixon, Kevin R.; Wick, David V.

Iris recognition utilizes distinct patterns found in the human iris to perform identification. Image acquisition is a critical first step towards successful operation of iris recognition systems. However, the quality of iris images required by standard iris recognition algorithms puts hard constraints on the imaging optical systems which have resulted in demonstrated systems to date requiring a relatively short subject stand-off distance. In this paper, we study long-range iris recognition at distances as large as 200 meters, and determine conditions the imaging system must satisfy for identification at longer stand-off distances. © 2009 SPIE.