The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 30, 2024
Filed:
Jun. 16, 2023
Republic of Korea (National Forensic Service Director Ministry of the Interior and Safety), Wonju-si, KR;
Kyu Young Lim, Wonju-si, KR;
Young Il Seo, Wonju-si, KR;
Byung Seon Moon, Busan, KR;
Jin Pyo Kim, Daejeon, KR;
Abstract
A fingerprint ridge digital enhancement apparatus includes: a fingerprint image obtainer configured to obtain a fingerprint image; a pixel value extractor configured to divide an area with ridges and an area without ridges in the fingerprint image, and to extract a pixel value according to a color model for each area; an outlier detector configured to detect an outlier of the pixel value according to the color model for each area; a correction operator configured to calculate the average and standard deviation of pixel values according to the color model for each area from which the outlier is removed; a parameter operator configured to set a parameter that is a criterion for dividing each area, and to operate a reference value of the parameter; and a matrix operator configured to generate and operate a matrix including the pixel value according to the color model of the fingerprint image and the reference value of the parameter.