Fingerprint collection method and device

A fingerprint collection and fingerprint technology, applied in the direction of instruments, computing, character and pattern recognition, etc., can solve the problem of low fingerprint recognition efficiency

Active Publication Date: 2018-05-29
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] If the contact area between the finger and the fingerprint sensor chip is smaller than the preset area when the user performs fingerprint recognition for the first time, the user needs to lift the finger and drop it down again to correct the finger position, so as to...

Method used

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  • Fingerprint collection method and device
  • Fingerprint collection method and device
  • Fingerprint collection method and device

Examples

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Embodiment Construction

[0050] 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.

[0051] The "module" mentioned herein refers to a program or instruction stored in a memory capable of realizing certain functions; the "multiple" mentioned herein refers to two or more than two. "And / or" describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and / or B may indicate: A exists alone, A and B e...

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Abstract

The embodiment of the disclosure relates to a fingerprint collection method and device, which belong to the technical field of fingerprint collection. The method comprises: a finger pressing event reported by a fingerprint sensor chip is received; a contact area reported by the fingerprint sensor chip is obtained, wherein the contact area is a contact area of a contact plane between the finger andthe fingerprint sensor chip; when the contact area does not reach a predetermined area, the contact area reported by the fingerprint sensor chip is obtained at a preset interval; and when the contactarea reaches the preset area, the fingerprint sensor chip is controlled to collect a fingerprint image of the finger. Because the control layer receives the contact area at each time interval, the user can trigger the control layer to receive the contact area only by moving and correcting the finger position on the contact plane, so that the fingerprint identification efficiency is improved.

Description

technical field [0001] The present disclosure relates to the technical field of fingerprint collection, in particular to a fingerprint collection method and device. Background technique [0002] As a highly reliable identity authentication technology, fingerprint recognition is widely used in terminals. The fingerprint recognition process includes a fingerprint collection stage and a fingerprint matching stage. [0003] In the fingerprint collection stage, if the fingerprint sensor chip detects that the finger is pressed, it will report the finger press event to the control layer. At this time, the control layer starts to receive the fingerprint related data reported by the fingerprint sensor chip. Then, the control layer detects whether the contact area reaches the preset area according to the contact area of ​​the finger reported by the fingerprint sensor chip; if it does not reach the preset area, the control layer stops receiving the fingerprint related data reported by...

Claims

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Application Information

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IPC IPC(8): G06K9/00
CPCG06V40/13
Inventor 黄学斌
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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