Access method and device for fingerprint mask image

A mask image and access method technology, which is applied in the field of fingerprint mask image access, can solve the problems of inability to achieve space occupation and storage accuracy, and achieve the solution of space occupation and storage accuracy, small occupation, and saving storage resources Effect

Active Publication Date: 2016-06-29
SHENZHEN CHIPSAILING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] In view of this, the embodiments of the present invention provide a fingerprint mask image access method and device to solve the problem that the existing fingerprint mask image access method cannot achieve a balance between space occupation and storage accuracy

Method used

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  • Access method and device for fingerprint mask image
  • Access method and device for fingerprint mask image
  • Access method and device for fingerprint mask image

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Embodiment Construction

[0024] In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate. In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0025] figure 1 The implementation flow of the access method for fingerprint mask images provided by the embodiment of the present invention is shown, and the details are as follows:

[0026] In S101, boundary information of a mask area in a fingerprint mask image is acquired....

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Abstract

The invention is suitable for the technical field of fingerprint recognition and provides an access method and device for a fingerprint mask image. The method comprises the following steps: obtaining boundary information of a mask region in the fingerprint mask image; storing the boundary information into a file; when the fingerprint mask image needs to be transferred, reading the boundary information in the file; and restoring the fingerprint mask image according to the boundary information. According to the access scheme for the fingerprint mask image, on one hand, the occupied storage space is extremely small and storage resources are well saved; and on the other hand, the fingerprint mask image can still be restored at original accuracy, so that the recognition accuracy of a whole fingerprint recognition system is ensured; and the balance between the space occupation and the storage accuracy in the access process of the fingerprint mask image is well achieved.

Description

technical field [0001] The invention belongs to the technical field of fingerprint identification, in particular to a method and device for accessing fingerprint mask images. Background technique [0002] In recent years, fingerprint identification technology has been successfully applied in various fields of social life, such as smart phones, access control systems, e-commerce, attendance systems, payment devices and identification and other technical fields. In the working process of the fingerprint identification system, it is necessary to segment the fingerprint mask image from the fingerprint image and store it, so that the image enhancement, direction field calculation, binarization and feature of the fingerprint image can be performed later by reading the fingerprint mask image. A series of operations such as extraction to obtain more accurate fingerprint identification results. [0003] Currently commonly used fingerprint mask image access methods include: directly ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06
CPCG06F3/0608G06F3/0643
Inventor 于泽
Owner SHENZHEN CHIPSAILING TECH CO LTD
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