Apparatus and method of digital enhancement of fingerprint ridges

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11972632
SERIAL NO

18210841

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Abstract

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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.

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Patent Owner(s)

  • REPUBLIC OF KOREA (NATIONAL SERVICE DIRECTOR MINISTRY OF THE INTERIOR AND SAFETY)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kim, Jin Pyo Daejeon, KR 50 45
Lim, Kyu Young Wonju-si, KR 1 0
Moon, Byung Seon Busan, KR 11 0
Seo, Young Il Wonju-si, KR 26 7

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