Method for enhancing fingerprint image, identifying fingerprint and starting-up application program

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United States of America Patent

PATENT NO 11874907
SERIAL NO

17041465

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Abstract

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An embodiment of the present disclosure provides a method for enhancing a fingerprint image, identifying a fingerprint, and starting-up a application program. The method for enhancing the fingerprint image includes: removing a background texture of a fingerprint image of a current frame to obtain a pure fingerprint image; performing a first preprocessing on the pure fingerprint image to obtain a first pre-processed image; obtaining an effective area of the first pre-processed image; performing direction field estimation and direction field correction on the effective area; and performing a second pre-processing on the effective area after direction field correction to obtain an enhanced fingerprint image. With the solution of this embodiment, the number of fingerprint collections is reduced, the quality of fingerprint images is improved, the complexity of fingerprint collection is reduced, the efficiency of fingerprint unlocking is improved, and the user experience is improved.

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Patent Owner(s)

Patent OwnerAddress
ARCSOFT CORPORATION LIMITED19 FLOOR NO 392 BINXING ROAD (ARCSOFT BUILDING) CHANGHE STREET BINJIANG DISTRICT HANGZHOU ZHEJIANG 310052 310052

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lei, Hua Zhejiang, CN 12 42
Mei, Li Zhejiang, CN 19 250
Wang, Jin Zhejiang, CN 805 11628
Zhao, Jiacai Zhejiang, CN 1 2
Zhu, Mingming Zhejiang, CN 18 116

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