Methods and apparatuses for updating user authentication data
AssigneeSamsung Electronics Co., Ltd.
InventorsKyuhong Kim, Sungjoo Suh, Hyungsuk Kim, Changkyu Choi, Namjoon Kim, Wonjun Kim
Life of this patent
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Abstract
A method for updating biometric authentication data authenticates an input image using an enrollment database (DB) over a first length of time, the authentication including generating information for authenticating the input image, and updates the enrollment DB based on the first length time and the information for authenticating the input image.
Claims17
A method for updating biometric authentication data in a database stored in a memory of a device, the method comprising:
- authenticating an input image including biometric information of a biometric feature of a user based on enrolled images in the database stored in the memory;
- identifying a portion of the input image that is not overlapped by any of the enrolled images;
- determining a first similarity based on sizes of overlap regions between the input image and enrolled images in the database, the first similarity having a greatest value of similarity of the sizes of the overlap regions between the input image and the enrolled images in the database, the determining the first similarity including,
- determining correlations in the overlap regions between the input image and the enrolled images,
- determining the sizes of the overlap regions between the input image and the enrolled images, and
- determining similarities between the input image and the enrolled images based on the correlations and the sizes of the overlap regions;
- and
- adding the input image to the database based on whether the first similarity is below an upper threshold, the upper threshold based on the sizes of overlap regions between the enrolled images.
A method for updating biometric authentication data in an enrollment database (DB), the method comprising:
- receiving an input image including biometric information;
- determining a first similarity based on sizes of overlap regions between the input image and enrolled images in the enrollment DB, the first similarity having a greatest value of similarity of the sizes of the overlap regions between the input image and the enrolled images in the enrollment DB;
- determining whether to enroll the input image in the enrollment DB, based on whether the first similarity is below an upper threshold, the upper threshold based on the sizes of overlap regions between the enrolled images;
- and
- enrolling the input image based on the determination of whether to enroll the input image in the enrollment DB,
- wherein the determining the first similarity includes,
- determining correlations in the overlap regions between the input image and the enrolled images,
- determining the sizes of the overlap regions between the input image and the enrolled images, and
- determining similarities between the input image and the enrolled images based on the correlations and the sizes of the overlap regions.
Dependencies are inferred from the claim text.