PUPIL DETECTION DEVICE AND IRIS VERIFYING DEVICE

摘要

A pupil detection device comprising an image data extraction unit (220) for setting a plurality of concentric circles respectively as integrated circles on eye images and extracting the image data of eye images positioned on the circumferences of integrated circles, a pointer unit (260) for indicating the center coordinates of integrated circles, a peripheral integration unit (230) for integrating image data extracted by the image data extraction unit (220) along respective peripheries of integrated circles, a pupil radius detection unit (250) for detecting that the integrated value of an integrated circle has changed stepwise with respect to the radius of an integrated circle, and a pupil position detection unit (280) for detecting, when the integrated value of an integrated circle has changed stepwise with respect to the radius of an integrated circle, the center coordinate of the integrated circle as a pupil position coordinate, wherein the image data extraction unit (220) extracts a plurality of pieces of image data concurrently.