Invention Grant
- Patent Title: Method and system for fingerprint image enhancement
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Application No.: US16753762Application Date: 2018-10-02
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Publication No.: US11080546B2Publication Date: 2021-08-03
- Inventor: Søren Skovgaard Christensen , Morten With Pedersen
- Applicant: Fingerprint Cards AB
- Applicant Address: SE Gothenburg
- Assignee: Fingerprint Cards AB
- Current Assignee: Fingerprint Cards AB
- Current Assignee Address: SE Gothenburg
- Agency: RMCK Law Group, PLC
- Priority: SE1751271-6 20171013
- International Application: PCT/SE2018/051008 WO 20181002
- International Announcement: WO2019/074423 WO 20190418
- Main IPC: G06K9/40
- IPC: G06K9/40 ; G06K9/00

Abstract:
The present disclosure relates a method for fingerprint image enhancement comprising applying a first low pass filter and a first weight to raw fingerprint image data to produce a first filtered fingerprint image data set. Applying a second low pass filter and a second weight to the raw fingerprint image data to produce a second filtered fingerprint image data set. Filter coefficients of the second filter are different from filter coefficients of the first filter. The first filtered fingerprint image data set and the second filtered fingerprint image data set are combined to produce a final enhanced fingerprint image. The disclosure also relates to a fingerprint sensing system and to an electronic device comprising a fingerprint sensing system.
Public/Granted literature
- US20200285882A1 METHOD AND SYSTEM FOR FINGERPRINT IMAGE ENHANCEMENT Public/Granted day:2020-09-10
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