Granted Patent B2

US 12,373,530 · App. 18/519,076 · Granted Jul 29, 2025

Inventors: Sungho Son (Seoul, KR); Juri Seo (Namyangju-si, KR)

Assignee: Fullstack Inc.

G06F21/32G06V30/10

Abstract

Claims (37)

1. A method for authenticating a user, which is performed by

at least one processor, the method comprising:

obtaining an image of an identity (ID) card;

assigning a parameter score to at least one parameter included in the image of the ID card;

assigning an accuracy score to the at least one parameter extracted through character recognition, based on the image of the ID card;

setting a first weight for the parameter score and a second weight for the accuracy score; setting a weight related to a priority for the at least one parameter; and calculating an authentication score based on the parameter score, the accuracy score, the first weight, the second weight, and the weight related to the priority; and

wherein the assigning of the parameter score includes: comparing a result extracted through the character recognition based on the image of the ID card with the at least one parameter;

assigning a first value to the parameter score when a parameter included in the at least one parameter is included in the extracted result and a second value to the parameter score when the parameter included in the at least one parameter is not included in the extracted result; and

further comprising: obtaining a user input value for the at least one parameter, wherein the assigning of the parameter score includes:

comparing the extracted result with the user input value with respect to the at least one parameter; multiplying the parameter score by a third value when the extracted result is equal to the user input value and the parameter score by a fourth value when the extracted result is different from the user input value.

2. The method of claim 1 , wherein the assigning of the accuracy score includes: setting a reliability score for the character recognition for the at least one parameter as the accuracy score; and setting an average of a plurality of reliability scores as a reliability score for one parameter when the plurality of reliability scores are provided for the one parameter.

3. The method of claim 1 , wherein the first weight is higher than the second weight.

4. The method of claim 1 , wherein the setting of the weight related to the priority includes: classifying parameters included in the at least one parameter into a first group related to user authentication and a second group related to verification of the ID card; setting a first group weight for the first group and a second group weight for the second group; setting a weight for each of parameters included in the first group, such that a sum of the weights of the parameters included in the first group is equal to the first group weight; and setting a weight for each of parameters included in the second group, such that a sum of the weights of the parameters included in second first group is equal to the second group weight.

5. The method of claim 4 , wherein the first group weight is greater than the second group weight, and wherein a weight of one parameter included in the second group is set to be equal to or less than a threshold value.

6. The method of claim 4 , wherein the weight of each parameter included in the first group is set as a value that the first group weight divided by the number of parameters included in the first group.

7. The method of claim 1 , wherein the at least one parameter includes: at least one of a name, a date of birth, an ID card number, an ID type, an expiration date, an issue date, a gender, and a nationality.

8. The method of claim 4 , wherein the first weight, the second weight, the first group weight, and the second group weight are set through an artificial intelligence (AI) model.

9. The method of claim 1 , further comprising: authenticating an identify of a user corresponding to the image of the ID card, when the authentication score is equal to or greater than an authentication reference value.

10. A non-transitory computer program recorded in a computer-readable medium to execute the method for authenticating a user, which is performed by at least one processor, the method comprising:

obtaining an image of an identity (ID) card; assigning a parameter score to at least one parameter included in the image of the ID card;

assigning an accuracy score to the at least one parameter extracted through character recognition, based on the image of the ID card;

setting a first weight for the parameter score and a second weight for the accuracy score; setting a weight related to a priority for the at least one parameter; and

calculating an authentication score based on the parameter score, the accuracy score, the first weight, the second weight, and the weight related to the priority; and

wherein the assigning of the parameter score includes:

comparing a result extracted through the character recognition based on the image of the ID card with the at least one parameter; assigning a first value to the parameter score when a parameter included in the at least one parameter is included in the extracted result and a second value to the parameter score when the parameter included in the at least one parameter is not included in the extracted result; and further comprising:

obtaining a user input value for the at least one parameter, wherein the assigning of the parameter score includes: comparing the extracted result with the user input value with respect to the at least one parameter;

multiplying the parameter score by a third value when the extracted result is equal to the user input value and the parameter score by a fourth value when the extracted result is different from the user input value.

11. A method for authenticating a user, which is performed by at least one processor, the method comprising:

obtaining an image of an identity (ID) card;

assigning a parameter score to at least one parameter included in the image of the ID card; assigning an accuracy score to the at least one parameter extracted through character recognition, based on the image of the ID card;

setting a first weight for the parameter score and a second weight for the accuracy score; setting a weight related to a priority for the at least one parameter; and

calculating an authentication score based on the parameter score, the accuracy score, the first weight, the second weight, and the weight related to the priority; and

wherein the assigning of the parameter score includes: comparing a result extracted through the character recognition based on the image of the ID card with the at least one parameter;

assigning a first value to the parameter score when a parameter included in the at least one parameter is included in the extracted result and a second value to the parameter score when the parameter included in the at least one parameter is not included in the extracted result; and

wherein the assigning of the parameter score includes:

multiplying the parameter score by a first multiple value when the parameter included in the at least one parameter is related to verification by the government and the parameter score by a second multiple value smaller than the first multiple value when the parameter is related to a bar code or a region to be read by a machine; and

setting a reference value as the parameter score when the parameter score is greater than the reference value.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (18)