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Fingerprint identification method and device

A technology for fingerprint identification and user fingerprints, which is applied to measurement devices, character and pattern recognition, acquisition/organization of fingerprints/palmprints, etc. The effect of avoiding safety hazards

Active Publication Date: 2020-03-17
XIAOMI INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the learning function will add the pixel features of the damaged pixel units in the fingerprint recognition sensor to the fingerprint template, thereby improving the false recognition rate of the fingerprint recognition sensor and causing potential safety hazards in the mobile terminal, the present disclosure provides a fingerprint recognition Method and device

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  • Fingerprint identification method and device
  • Fingerprint identification method and device

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Embodiment Construction

[0066] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

[0067] figure 1 It is a hardware structural diagram of a mobile terminal shown according to an exemplary embodiment. Such as figure 1 As shown, the mobile terminal may be a terminal such as a smart phone, a tablet computer, or an e-book reader. The mobile terminal includes a processor 120 , a memory 140 connected to the processor 120 and a fingerprint identification module 160 respe...

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Abstract

The disclosure discloses a fingerprint identification method and device, belonging to the field of fingerprint identification. The fingerprint identification method includes: by detecting whether the number of damaged pixel units in the fingerprint identification sensor reaches a predetermined threshold, the damaged pixel unit refers to a physically damaged pixel unit in the fingerprint identification sensor; if the number of damaged pixel units reaches If the threshold is predetermined, the matching and recognition of the fingerprint image collected by the fingerprint recognition sensor will be abandoned; the learning function will add the pixel features of the damaged pixel units in the fingerprint recognition sensor to the fingerprint template, thereby improving the fingerprint recognition sensor. rate, leading to the problem of potential safety hazards in mobile terminals; when the number of damaged pixel units reaches a predetermined threshold, the matching recognition of fingerprint images is given up, which reduces the false recognition rate of fingerprint recognition sensors and avoids mobile terminals due to false recognition. The effect of potential safety hazards caused by excessive false rate.

Description

technical field [0001] The present disclosure relates to the field of fingerprint identification, in particular to a fingerprint identification method and device. Background technique [0002] Fingerprint identification technology has been widely used on mobile terminals such as smart phones and tablet computers. An array of M*N pixel units is arranged on the fingerprint identification sensor. Fingerprint recognition technology collects the user's fingerprint image through each pixel unit in the fingerprint recognition sensor, and matches the collected fingerprint image with the pre-stored fingerprint template to realize functions such as screen unlocking and mobile payment. [0003] Since the user's fingerprint will change with age and season, therefore, in the related art, a learning function is added to the fingerprint template, thereby reducing the false rejection rate (False Reject Rate, FRR) of the fingerprint recognition sensor. Fingerprint images are recognized as ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06F11/22
CPCG06F11/2221G06F11/2289G06V40/13G06V40/1306G06V40/1365G01R31/2829G01R31/44
Inventor 孙长宇李志杰孙伟
Owner XIAOMI INC
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