摘要:
Provided is a fingerprint matching method and apparatus using fingerprint minutiae and fingerprint binary images. The method includes: constructing a template fingerprint database by extracting minutiae information and a binary image of a first fingerprint image; and extracting minutiae information and a binary image of a second fingerprint image to be authenticated and performing authentication by aligning the extracted minutiae information and the binary image of the second fingerprint image with data in the template fingerprint database. Accordingly, the fingerprint matching using the fingerprint binary images is additionally performed, thereby reducing a false acceptance rate (FAR) compared to a conventional minutia-based fingerprint authentication method.
摘要:
Provided is a method and apparatus for authenticating a fingerprint by hiding minutiae, securely storing information on the fingerprint, and authenticating the information on the fingerprint in order to prevent the information on the fingerprint from being reused by an attacker who accesses the information on the fingerprint that is stored in a storage unit. The method for recognizing fingerprint by hiding minutiae of a fingerprint adds fake minutiae information to genuine minutiae information, hides fingerprint information using a polynomial, which is generated based on personal intrinsic information, and stores the fingerprint information, thereby securely protecting the fingerprint information from an external attacker, and preventing the fingerprint information accessed by the attacker from being reused since the attacker cannot know the genuine minutiae.
摘要:
Provided are a method and apparatus for identifying a fingerprint. The method uses minutiae points of the fingerprint and includes (a) enrolling a fingerprint of a first user in a first database by extracting n minutiae points from a fingerprint image of the first user; selecting one of the n minutiae points as a reference point; rotating the other minutiae points by a predetermined angle with respect to the reference point; generating a first user table containing information regarding the first user's fingerprint based on geometrical changes of the other minutiae points which are obtained by the rotation; and storing the first user table in the first database; and (b) identifying a fingerprint of a second user by extracting m minutiae points from a fingerprint image of the second user; selecting one of the m minutiae points as a reference point; generating a second user table containing information regarding the second user's fingerprint based on geometric changes of the other minutiae points obtained by rotating the other minutiae points by an angle about the reference point; comparing the second user table with the first user table, and selecting a similar candidate list of user tables (m and n are integers). Accordingly, it is possible to enroll a large amount of information regarding fingerprints in a database using quantization and geometric hashing while using a limited storage memory of a central database. Further, it is possible to accurately identify and detect a user's fingerprint in real time using geometric hashing and parallel processing.
摘要:
Provided is a fingerprint sensor using a microlens including the microlens changing a path of light reflected by a fingerprint structure, and an optical-TFT checking the fingerprint structure from the light whose path is changed. Since the microlens including the spherical lens to change the path of light is provided, the amount of light incident on the light measuring area can be maximized. Also, since the noise such as dispersed light is exhausted by the spherical lens outside the light measuring area, the effect by the noise can be minimized.
摘要:
Disclosed herein is a gold nanoparticle (AuNP)-based peptide chip prepared by forming a monolayer of AuNPs onto a self-assembled monolayer constructed on a solid support, and then immobilizing a peptide on the AuNPs. The AuNPs can effectively amplify the mass signal of the peptide, thus making it possible to measure the mass change of the peptide in a simple and accurate manner. Also, when secondary ion mass spectrometric analysis (spectrum or imaging) is performed on the AuNP-based peptide chip, the activities of enzymes and related inhibitors can be effectively quantified. The disclosed invention enables various enzyme activities to be analyzed rapidly and accurately, and thus can provide an important method for disease diagnosis and new drug development through the elucidation of signaling and interaction mechanisms.