Patent ID: 7634113
Filing Date: 2009-12-15
Classification: G06K

Abstract:
1. A user recognizing system for determining a predetermined user based on a user image, comprising: a user information database including user ID and corresponding user feature information; an image input unit for digitalizing the user image into user image data and transmitting the digitalized user image data into the system; a feature recognizing unit for extracting first user feature being absolutely unique biometric information and second user feature information being unique semibiometric information under a predetermined condition from the user image data transmitted from the image input unit, and respectively generating a first probability and a second probability that the extracted first and second user feature information determine the predetermined user based on the information stored in the user information database; and a user determination unit for finally determining a user ID of the user image by combining the first probability and the second probability, wherein the feature recognizing unit includes a first feature recognizing unit for generating the first probability based on factors including whether extracting the first user feature satisfied a standard of the feature recognizing unit and a second feature recognizing unit for generating the second probability based on factors including differences in semibiometric information among all users of a predetermined user group, wherein the first probability or the second probability is given as follows: where U P X is the first feature or the second feature, μ is the measured result of the first feature or the second feature, N is a total user number within a predetermined user group.