Patent ID: 6055323
Filing Date: 2000-04-25
Classification: G06K

Abstract:
A face image processing system, comprising:a face image inputter for inputting a face image;a binary converter for binarizing the face image as inputted;a characteristic element extractor for extracting face characterizing elements from a binary image outputted from said binary converter;a naris extractor for extracting nares from said face characterizing elements extracted from said characteristic element extractor, including:a naris-width threshold value discriminator for setting a naris-width threshold value for extracting naris candidates, said discriminator being operative to search for the maximum value of an x-histogram within a plurality of characteristic regions in determining said naris-width threshold value;a naris candidate extractor for extracting naris candidates by using said naris-width threshold value;a naris region discriminator for specifying a naris region on the basis of said naris candidates;a reference positioner for setting a reference position for said specified naris region; andan eye extractor for setting an eye detecting region with reference to said reference position provided by said nares for extracting the eyes.