×

Iris identification system and iris identification method

  • US 5,901,238 A
  • Filed: 02/07/1997
  • Issued: 05/04/1999
  • Est. Priority Date: 02/07/1996
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method of identifying a person based on an iris pattern of the person, the method comprising:

  • performing a comparison process, includingsensing the iris pattern of the person to be identified,generating iris data corresponding to the sensed iris pattern,comparing the generated iris data with selected registered iris data so as to identify portions of the generated iris data and the selected registered iris data which match each other,accumulating the identified matching portions of iris data, andcomparing the accumulated matching portions of iris data with the selected registered iris data, and based upon the comparison, judging whether the person to be identified corresponds to the selected registered iris data; and

    repeating the comparison process until either the person to be identified is judged to correspond to the selected registered iris data or a determination is made to discontinue the process according to a defined criterion, wherein the accumulation of matching portions of iris data includes the accumulation of matching portions of iris data from the most recently performed comparison process as well as all previous performances of the comparison process.

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