×

Face image processing system

  • US 6,055,323 A
  • Filed: 01/05/1998
  • Issued: 04/25/2000
  • Est. Priority Date: 07/24/1997
  • Status: Expired due to Term
First Claim
Patent Images

1. 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; and

    an eye extractor for setting an eye detecting region with reference to said reference position provided by said nares for extracting the eyes.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×