Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
個人認証装置及び個人認証方法
Document Type and Number:
Japanese Patent JP4617121
Kind Code:
B2
Abstract:

To perform personal authentication by extracting a feature parameter related to blinking on the basis of an eye blink extremely difficult to copy among dynamic biometric information.

According to video information comprising a plurality of frame images produced as a camera 10 images a blinking face of a person to be authenticated at a predetermined frame rate, an iris area image is extracted from each frame image. According to the extracted iris area images, the number of frames is normalized to a first number of eye closing image frames and a second number of eye opening image frames. Similarity is computed between the input images comprising the normalized frame number of iris area images and precomposed template images of the blink of the person to be authenticated. Collation based on the similarity determines whether or not the person to be authenticated is an authorized user.

COPYRIGHT: (C)2006,JPO&NCIPI


Inventors:
Takayuki Hamamoto
Ken Fujita
Application Number:
JP2004254706A
Publication Date:
January 19, 2011
Filing Date:
September 01, 2004
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
Tokyo University of Science
International Classes:
G06T7/00; G06F21/31; G06F21/32
Domestic Patent References:
JP6203145A
JP2003533801A
JP11213164A
Attorney, Agent or Firm:
Atsushi Nakajima
Kato Kazunori
Katsuichi Nishimoto
Hiroshi Fukuda