User authentication method and apparatus
AssigneeSamsung Electronics Co., Ltd.
InventorJonghan Kim
Life of this patent
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Abstract
A user authentication method includes matching an input image, comprising biometric information of a user, to a grid, selecting a reference cell from a database that stores respective location and image information of a plurality of cells previously randomly extracted from a reference biometric image, identifying a target image in the input image corresponding to the reference cell using the grid, comparing the target image to image information of the reference cell, and authenticating the user based on a result of the comparing.
Claims21
A user authentication method comprising:
- matching an input image comprising biometric information of a user to a grid;
- randomly selecting a reference cell from among a plurality of cells randomly extracted from a reference biometric image, each cell comprising respective location information and image information of a section of the reference biometric image;
- identifying a target image in the input image corresponding to the reference cell using the grid;
- comparing the target image to image information of the reference cell;
- and
- authenticating the user based on a result of the comparing.
A biometric information registration method comprising:
- acquiring a reference biometric image comprising biometric information of a user;
- matching the reference biometric image to a grid comprising cells, each cell comprising respective coordinate information;
- randomly selecting coordinate information of a plurality of cells from among the cells of the grid;
- extracting a set of cells corresponding to the selected coordinate information of the plurality of cells, from among cells of the respective biometric image corresponding to the cells of the grid;
- storing the extracted set of cells in a database;
- and
- discarding non-selected cells of the reference biometric image.
An authentication apparatus comprising:
- a sensor configured to acquire an input image comprising biometric information of a user;
- and
- a processor configured to
- match the input image to a grid,
- randomly select a reference cell from among a plurality of cells randomly extracted from a reference biometric image, each cell comprising respective location information and image information of a section of the reference biometric image,
- identify a target image in the input image corresponding to the reference cell using the grid,
- compare the target image to image information of the reference cell, and
- authenticate the user based on a result of the comparing.
Dependencies are inferred from the claim text.